Update Clippy for MethodCall changes

45 files changed, 89 insertions, 89 deletions

diff --git a/src/tools/clippy/clippy_lints/src/atomic_ordering.rs b/src/tools/clippy/clippy_lints/src/atomic_ordering.rs
index 73b4cef4725..fca9aaaff9d 100644
--- a/src/tools/clippy/clippy_lints/src/atomic_ordering.rs
+++ b/src/tools/clippy/clippy_lints/src/atomic_ordering.rs
@@ -70,7 +70,7 @@ fn match_ordering_def_path(cx: &LateContext<'_, '_>, did: DefId, orderings: &[&s
 
 fn check_atomic_load_store(cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
     if_chain! {
-        if let ExprKind::MethodCall(ref method_path, _, args) = &expr.kind;
+        if let ExprKind::MethodCall(ref method_path, _, args, _) = &expr.kind;
         let method = method_path.ident.name.as_str();
         if type_is_atomic(cx, &args[0]);
         if method == "load" || method == "store";
diff --git a/src/tools/clippy/clippy_lints/src/booleans.rs b/src/tools/clippy/clippy_lints/src/booleans.rs
index 8031052e073..f92c564543b 100644
--- a/src/tools/clippy/clippy_lints/src/booleans.rs
+++ b/src/tools/clippy/clippy_lints/src/booleans.rs
@@ -247,7 +247,7 @@ fn simplify_not(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> Option<String> {
                 ))
             })
         },
-        ExprKind::MethodCall(path, _, args) if args.len() == 1 => {
+        ExprKind::MethodCall(path, _, args, _) if args.len() == 1 => {
             let type_of_receiver = cx.tables.expr_ty(&args[0]);
             if !is_type_diagnostic_item(cx, type_of_receiver, sym!(option_type))
                 && !is_type_diagnostic_item(cx, type_of_receiver, sym!(result_type))
diff --git a/src/tools/clippy/clippy_lints/src/bytecount.rs b/src/tools/clippy/clippy_lints/src/bytecount.rs
index 90c00ad098f..531531a654d 100644
--- a/src/tools/clippy/clippy_lints/src/bytecount.rs
+++ b/src/tools/clippy/clippy_lints/src/bytecount.rs
@@ -38,10 +38,10 @@ declare_lint_pass!(ByteCount => [NAIVE_BYTECOUNT]);
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for ByteCount {
     fn check_expr(&mut self, cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
         if_chain! {
-            if let ExprKind::MethodCall(ref count, _, ref count_args) = expr.kind;
+            if let ExprKind::MethodCall(ref count, _, ref count_args, _) = expr.kind;
             if count.ident.name == sym!(count);
             if count_args.len() == 1;
-            if let ExprKind::MethodCall(ref filter, _, ref filter_args) = count_args[0].kind;
+            if let ExprKind::MethodCall(ref filter, _, ref filter_args, _) = count_args[0].kind;
             if filter.ident.name == sym!(filter);
             if filter_args.len() == 2;
             if let ExprKind::Closure(_, _, body_id, _, _) = filter_args[1].kind;
@@ -66,7 +66,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for ByteCount {
                         if ty::Uint(UintTy::U8) != walk_ptrs_ty(cx.tables.expr_ty(needle)).kind {
                             return;
                         }
-                        let haystack = if let ExprKind::MethodCall(ref path, _, ref args) =
+                        let haystack = if let ExprKind::MethodCall(ref path, _, ref args, _) =
                                 filter_args[0].kind {
                             let p = path.ident.name;
                             if (p == sym!(iter) || p == sym!(iter_mut)) && args.len() == 1 {
diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs
index 68ec07e2bcb..1cd30ae2c63 100644
--- a/src/tools/clippy/clippy_lints/src/dereference.rs
+++ b/src/tools/clippy/clippy_lints/src/dereference.rs
@@ -42,7 +42,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Dereferencing {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
         if_chain! {
             if !expr.span.from_expansion();
-            if let ExprKind::MethodCall(ref method_name, _, ref args) = &expr.kind;
+            if let ExprKind::MethodCall(ref method_name, _, ref args, _) = &expr.kind;
             if args.len() == 1;
 
             then {
diff --git a/src/tools/clippy/clippy_lints/src/double_parens.rs b/src/tools/clippy/clippy_lints/src/double_parens.rs
index 05517f6f9f0..1eb380a22cc 100644
--- a/src/tools/clippy/clippy_lints/src/double_parens.rs
+++ b/src/tools/clippy/clippy_lints/src/double_parens.rs
@@ -70,7 +70,7 @@ impl EarlyLintPass for DoubleParens {
                     }
                 }
             },
-            ExprKind::MethodCall(_, ref params) => {
+            ExprKind::MethodCall(_, ref params, _) => {
                 if params.len() == 2 {
                     let param = &params[1];
                     if let ExprKind::Paren(_) = param.kind {
diff --git a/src/tools/clippy/clippy_lints/src/duration_subsec.rs b/src/tools/clippy/clippy_lints/src/duration_subsec.rs
index afefa250638..7171dcef968 100644
--- a/src/tools/clippy/clippy_lints/src/duration_subsec.rs
+++ b/src/tools/clippy/clippy_lints/src/duration_subsec.rs
@@ -42,7 +42,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for DurationSubsec {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
         if_chain! {
             if let ExprKind::Binary(Spanned { node: BinOpKind::Div, .. }, ref left, ref right) = expr.kind;
-            if let ExprKind::MethodCall(ref method_path, _ , ref args) = left.kind;
+            if let ExprKind::MethodCall(ref method_path, _ , ref args, _) = left.kind;
             if match_type(cx, walk_ptrs_ty(cx.tables.expr_ty(&args[0])), &paths::DURATION);
             if let Some((Constant::Int(divisor), _)) = constant(cx, cx.tables, right);
             then {
diff --git a/src/tools/clippy/clippy_lints/src/entry.rs b/src/tools/clippy/clippy_lints/src/entry.rs
index 7b332c761a0..f625058b670 100644
--- a/src/tools/clippy/clippy_lints/src/entry.rs
+++ b/src/tools/clippy/clippy_lints/src/entry.rs
@@ -103,7 +103,7 @@ fn check_cond<'a, 'tcx, 'b>(
     check: &'b Expr<'b>,
 ) -> Option<(&'static str, &'b Expr<'b>, &'b Expr<'b>)> {
     if_chain! {
-        if let ExprKind::MethodCall(ref path, _, ref params) = check.kind;
+        if let ExprKind::MethodCall(ref path, _, ref params, _) = check.kind;
         if params.len() >= 2;
         if path.ident.name == sym!(contains_key);
         if let ExprKind::AddrOf(BorrowKind::Ref, _, ref key) = params[1].kind;
@@ -140,7 +140,7 @@ impl<'a, 'tcx, 'b> Visitor<'tcx> for InsertVisitor<'a, 'tcx, 'b> {
 
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         if_chain! {
-            if let ExprKind::MethodCall(ref path, _, ref params) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref params, _) = expr.kind;
             if params.len() == 3;
             if path.ident.name == sym!(insert);
             if get_item_name(self.cx, self.map) == get_item_name(self.cx, &params[0]);
diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs
index d093025fd3d..a889856de27 100644
--- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs
+++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs
@@ -71,7 +71,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for EtaReduction {
         }
 
         match expr.kind {
-            ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args) => {
+            ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args, _) => {
                 for arg in args {
                     check_closure(cx, arg)
                 }
@@ -120,7 +120,7 @@ fn check_closure(cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
         );
 
         if_chain!(
-            if let ExprKind::MethodCall(ref path, _, ref args) = ex.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = ex.kind;
 
             // Not the same number of arguments, there is no way the closure is the same as the function return;
             if args.len() == decl.inputs.len();
diff --git a/src/tools/clippy/clippy_lints/src/explicit_write.rs b/src/tools/clippy/clippy_lints/src/explicit_write.rs
index 320121b2771..7269e2b52c2 100644
--- a/src/tools/clippy/clippy_lints/src/explicit_write.rs
+++ b/src/tools/clippy/clippy_lints/src/explicit_write.rs
@@ -32,11 +32,11 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for ExplicitWrite {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
         if_chain! {
             // match call to unwrap
-            if let ExprKind::MethodCall(ref unwrap_fun, _, ref unwrap_args) = expr.kind;
+            if let ExprKind::MethodCall(ref unwrap_fun, _, ref unwrap_args, _) = expr.kind;
             if unwrap_fun.ident.name == sym!(unwrap);
             // match call to write_fmt
             if !unwrap_args.is_empty();
-            if let ExprKind::MethodCall(ref write_fun, _, write_args) =
+            if let ExprKind::MethodCall(ref write_fun, _, write_args, _) =
                 unwrap_args[0].kind;
             if write_fun.ident.name == sym!(write_fmt);
             // match calls to std::io::stdout() / std::io::stderr ()
diff --git a/src/tools/clippy/clippy_lints/src/floating_point_arithmetic.rs b/src/tools/clippy/clippy_lints/src/floating_point_arithmetic.rs
index 3a912d92837..ad4f66c52c2 100644
--- a/src/tools/clippy/clippy_lints/src/floating_point_arithmetic.rs
+++ b/src/tools/clippy/clippy_lints/src/floating_point_arithmetic.rs
@@ -301,7 +301,7 @@ fn check_expm1(cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
         if cx.tables.expr_ty(lhs).is_floating_point();
         if let Some((value, _)) = constant(cx, cx.tables, rhs);
         if F32(1.0) == value || F64(1.0) == value;
-        if let ExprKind::MethodCall(ref path, _, ref method_args) = lhs.kind;
+        if let ExprKind::MethodCall(ref path, _, ref method_args, _) = lhs.kind;
         if cx.tables.expr_ty(&method_args[0]).is_floating_point();
         if path.ident.name.as_str() == "exp";
         then {
@@ -481,7 +481,7 @@ fn check_custom_abs(cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for FloatingPointArithmetic {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
-        if let ExprKind::MethodCall(ref path, _, args) = &expr.kind {
+        if let ExprKind::MethodCall(ref path, _, args, _) = &expr.kind {
             let recv_ty = cx.tables.expr_ty(&args[0]);
 
             if recv_ty.is_floating_point() {
diff --git a/src/tools/clippy/clippy_lints/src/format.rs b/src/tools/clippy/clippy_lints/src/format.rs
index 1530538aa7d..4cae5ca2c43 100644
--- a/src/tools/clippy/clippy_lints/src/format.rs
+++ b/src/tools/clippy/clippy_lints/src/format.rs
@@ -104,7 +104,7 @@ fn on_argumentv1_new<'a, 'tcx>(
                 }
             } else {
                 let snip = snippet(cx, format_args.span, "<arg>");
-                if let ExprKind::MethodCall(ref path, _, _) = format_args.kind {
+                if let ExprKind::MethodCall(ref path, _, _, _) = format_args.kind {
                     if path.ident.name == sym!(to_string) {
                         return Some(format!("{}", snip));
                     }
diff --git a/src/tools/clippy/clippy_lints/src/functions.rs b/src/tools/clippy/clippy_lints/src/functions.rs
index 325b6cf32a3..991d129e8f0 100644
--- a/src/tools/clippy/clippy_lints/src/functions.rs
+++ b/src/tools/clippy/clippy_lints/src/functions.rs
@@ -556,7 +556,7 @@ impl<'a, 'tcx> intravisit::Visitor<'tcx> for DerefVisitor<'a, 'tcx> {
                     }
                 }
             },
-            hir::ExprKind::MethodCall(_, _, args) => {
+            hir::ExprKind::MethodCall(_, _, args, _) => {
                 let def_id = self.tables.type_dependent_def_id(expr.hir_id).unwrap();
                 let base_type = self.cx.tcx.type_of(def_id);
 
@@ -610,7 +610,7 @@ impl<'a, 'tcx> intravisit::Visitor<'tcx> for StaticMutVisitor<'a, 'tcx> {
             return;
         }
         match expr.kind {
-            Call(_, args) | MethodCall(_, _, args) => {
+            Call(_, args) | MethodCall(_, _, args, _) => {
                 let mut tys = FxHashSet::default();
                 for arg in args {
                     let def_id = arg.hir_id.owner.to_def_id();
diff --git a/src/tools/clippy/clippy_lints/src/get_last_with_len.rs b/src/tools/clippy/clippy_lints/src/get_last_with_len.rs
index c32e0a2290d..3629ba623ce 100644
--- a/src/tools/clippy/clippy_lints/src/get_last_with_len.rs
+++ b/src/tools/clippy/clippy_lints/src/get_last_with_len.rs
@@ -47,7 +47,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for GetLastWithLen {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
         if_chain! {
             // Is a method call
-            if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind;
 
             // Method name is "get"
             if path.ident.name == sym!(get);
@@ -69,7 +69,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for GetLastWithLen {
             ) = &get_index_arg.kind;
 
             // LHS of subtraction is "x.len()"
-            if let ExprKind::MethodCall(arg_lhs_path, _, lhs_args) = &lhs.kind;
+            if let ExprKind::MethodCall(arg_lhs_path, _, lhs_args, _) = &lhs.kind;
             if arg_lhs_path.ident.name == sym!(len);
             if let Some(arg_lhs_struct) = lhs_args.get(0);
 
diff --git a/src/tools/clippy/clippy_lints/src/if_let_mutex.rs b/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
index ae92a96d163..04d17c91d63 100644
--- a/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
+++ b/src/tools/clippy/clippy_lints/src/if_let_mutex.rs
@@ -147,7 +147,7 @@ impl<'tcx, 'l> ArmVisitor<'tcx, 'l> {
 
 fn is_mutex_lock_call<'a>(cx: &LateContext<'a, '_>, expr: &'a Expr<'_>) -> Option<&'a Expr<'a>> {
     if_chain! {
-        if let ExprKind::MethodCall(path, _span, args) = &expr.kind;
+        if let ExprKind::MethodCall(path, _span, args, _) = &expr.kind;
         if path.ident.to_string() == "lock";
         let ty = cx.tables.expr_ty(&args[0]);
         if is_type_diagnostic_item(cx, ty, sym!(mutex_type));
diff --git a/src/tools/clippy/clippy_lints/src/if_let_some_result.rs b/src/tools/clippy/clippy_lints/src/if_let_some_result.rs
index 9b13f760924..6a1fcdd1ce4 100644
--- a/src/tools/clippy/clippy_lints/src/if_let_some_result.rs
+++ b/src/tools/clippy/clippy_lints/src/if_let_some_result.rs
@@ -42,7 +42,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for OkIfLet {
         if_chain! { //begin checking variables
             if let ExprKind::Match(ref op, ref body, source) = expr.kind; //test if expr is a match
             if let MatchSource::IfLetDesugar { .. } = source; //test if it is an If Let
-            if let ExprKind::MethodCall(_, ok_span, ref result_types) = op.kind; //check is expr.ok() has type Result<T,E>.ok()
+            if let ExprKind::MethodCall(_, ok_span, ref result_types, _) = op.kind; //check is expr.ok() has type Result<T,E>.ok(, _)
             if let PatKind::TupleStruct(QPath::Resolved(_, ref x), ref y, _)  = body[0].pat.kind; //get operation
             if method_chain_args(op, &["ok"]).is_some(); //test to see if using ok() methoduse std::marker::Sized;
             if is_type_diagnostic_item(cx, cx.tables.expr_ty(&result_types[0]), sym!(result_type));
diff --git a/src/tools/clippy/clippy_lints/src/infinite_iter.rs b/src/tools/clippy/clippy_lints/src/infinite_iter.rs
index cd989c0ea6f..a860a9def24 100644
--- a/src/tools/clippy/clippy_lints/src/infinite_iter.rs
+++ b/src/tools/clippy/clippy_lints/src/infinite_iter.rs
@@ -142,7 +142,7 @@ const HEURISTICS: [(&str, usize, Heuristic, Finiteness); 19] = [
 
 fn is_infinite(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> Finiteness {
     match expr.kind {
-        ExprKind::MethodCall(ref method, _, ref args) => {
+        ExprKind::MethodCall(ref method, _, ref args, _) => {
             for &(name, len, heuristic, cap) in &HEURISTICS {
                 if method.ident.name.as_str() == name && args.len() == len {
                     return (match heuristic {
@@ -218,7 +218,7 @@ const INFINITE_COLLECTORS: [&[&str]; 8] = [
 
 fn complete_infinite_iter(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> Finiteness {
     match expr.kind {
-        ExprKind::MethodCall(ref method, _, ref args) => {
+        ExprKind::MethodCall(ref method, _, ref args, _) => {
             for &(name, len) in &COMPLETING_METHODS {
                 if method.ident.name.as_str() == name && args.len() == len {
                     return is_infinite(cx, &args[0]);
diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs
index f5bfede75a7..13e85fda8ff 100644
--- a/src/tools/clippy/clippy_lints/src/len_zero.rs
+++ b/src/tools/clippy/clippy_lints/src/len_zero.rs
@@ -211,7 +211,7 @@ fn check_impl_items(cx: &LateContext<'_, '_>, item: &Item<'_>, impl_items: &[Imp
 }
 
 fn check_cmp(cx: &LateContext<'_, '_>, span: Span, method: &Expr<'_>, lit: &Expr<'_>, op: &str, compare_to: u32) {
-    if let (&ExprKind::MethodCall(ref method_path, _, ref args), &ExprKind::Lit(ref lit)) = (&method.kind, &lit.kind) {
+    if let (&ExprKind::MethodCall(ref method_path, _, ref args, _), &ExprKind::Lit(ref lit)) = (&method.kind, &lit.kind) {
         // check if we are in an is_empty() method
         if let Some(name) = get_item_name(cx, method) {
             if name.as_str() == "is_empty" {
diff --git a/src/tools/clippy/clippy_lints/src/loops.rs b/src/tools/clippy/clippy_lints/src/loops.rs
index 57c62d73964..771bc8d0558 100644
--- a/src/tools/clippy/clippy_lints/src/loops.rs
+++ b/src/tools/clippy/clippy_lints/src/loops.rs
@@ -526,7 +526,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Loops {
             let pat = &arms[0].pat.kind;
             if let (
                 &PatKind::TupleStruct(ref qpath, ref pat_args, _),
-                &ExprKind::MethodCall(ref method_path, _, ref method_args),
+                &ExprKind::MethodCall(ref method_path, _, ref method_args, _),
             ) = (pat, &match_expr.kind)
             {
                 let iter_expr = &method_args[0];
@@ -654,7 +654,7 @@ fn never_loop_expr(expr: &Expr<'_>, main_loop_id: HirId) -> NeverLoopResult {
         | ExprKind::Struct(_, _, Some(ref e))
         | ExprKind::Repeat(ref e, _)
         | ExprKind::DropTemps(ref e) => never_loop_expr(e, main_loop_id),
-        ExprKind::Array(ref es) | ExprKind::MethodCall(_, _, ref es) | ExprKind::Tup(ref es) => {
+        ExprKind::Array(ref es) | ExprKind::MethodCall(_, _, ref es, _) | ExprKind::Tup(ref es) => {
             never_loop_expr_all(&mut es.iter(), main_loop_id)
         },
         ExprKind::Call(ref e, ref es) => never_loop_expr_all(&mut once(&**e).chain(es.iter()), main_loop_id),
@@ -806,7 +806,7 @@ fn is_slice_like<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, ty: Ty<'_>) -> bool {
 
 fn fetch_cloned_expr<'tcx>(expr: &'tcx Expr<'tcx>) -> &'tcx Expr<'tcx> {
     if_chain! {
-        if let ExprKind::MethodCall(method, _, args) = expr.kind;
+        if let ExprKind::MethodCall(method, _, args, _) = expr.kind;
         if method.ident.name == sym!(clone);
         if args.len() == 1;
         if let Some(arg) = args.get(0);
@@ -915,7 +915,7 @@ fn build_manual_memcpy_suggestion<'a, 'tcx>(
 
     let print_limit = |end: &Expr<'_>, offset: Offset, var: &Expr<'_>| {
         if_chain! {
-            if let ExprKind::MethodCall(method, _, len_args) = end.kind;
+            if let ExprKind::MethodCall(method, _, len_args, _) = end.kind;
             if method.ident.name == sym!(len);
             if len_args.len() == 1;
             if let Some(arg) = len_args.get(0);
@@ -1190,7 +1190,7 @@ fn check_for_loop_range<'a, 'tcx>(
 
 fn is_len_call(expr: &Expr<'_>, var: Name) -> bool {
     if_chain! {
-        if let ExprKind::MethodCall(ref method, _, ref len_args) = expr.kind;
+        if let ExprKind::MethodCall(ref method, _, ref len_args, _) = expr.kind;
         if len_args.len() == 1;
         if method.ident.name == sym!(len);
         if let ExprKind::Path(QPath::Resolved(_, ref path)) = len_args[0].kind;
@@ -1244,7 +1244,7 @@ fn lint_iter_method(cx: &LateContext<'_, '_>, args: &[Expr<'_>], arg: &Expr<'_>,
 
 fn check_for_loop_arg(cx: &LateContext<'_, '_>, pat: &Pat<'_>, arg: &Expr<'_>, expr: &Expr<'_>) {
     let mut next_loop_linted = false; // whether or not ITER_NEXT_LOOP lint was used
-    if let ExprKind::MethodCall(ref method, _, ref args) = arg.kind {
+    if let ExprKind::MethodCall(ref method, _, ref args, _) = arg.kind {
         // just the receiver, no arguments
         if args.len() == 1 {
             let method_name = &*method.ident.as_str();
@@ -1718,7 +1718,7 @@ impl<'a, 'tcx> Visitor<'tcx> for VarVisitor<'a, 'tcx> {
     fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
         if_chain! {
             // a range index op
-            if let ExprKind::MethodCall(ref meth, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref meth, _, ref args, _) = expr.kind;
             if (meth.ident.name == sym!(index) && match_trait_method(self.cx, expr, &paths::INDEX))
                 || (meth.ident.name == sym!(index_mut) && match_trait_method(self.cx, expr, &paths::INDEX_MUT));
             if !self.check(&args[1], &args[0], expr);
@@ -1776,7 +1776,7 @@ impl<'a, 'tcx> Visitor<'tcx> for VarVisitor<'a, 'tcx> {
                     self.visit_expr(expr);
                 }
             },
-            ExprKind::MethodCall(_, _, args) => {
+            ExprKind::MethodCall(_, _, args, _) => {
                 let def_id = self.cx.tables.type_dependent_def_id(expr.hir_id).unwrap();
                 for (ty, expr) in self.cx.tcx.fn_sig(def_id).inputs().skip_binder().iter().zip(args) {
                     self.prefer_mutable = false;
@@ -2369,8 +2369,8 @@ const NEEDLESS_COLLECT_MSG: &str = "avoid using `collect()` when not needed";
 
 fn check_needless_collect<'a, 'tcx>(expr: &'tcx Expr<'_>, cx: &LateContext<'a, 'tcx>) {
     if_chain! {
-        if let ExprKind::MethodCall(ref method, _, ref args) = expr.kind;
-        if let ExprKind::MethodCall(ref chain_method, _, _) = args[0].kind;
+        if let ExprKind::MethodCall(ref method, _, ref args, _) = expr.kind;
+        if let ExprKind::MethodCall(ref chain_method, _, _, _) = args[0].kind;
         if chain_method.ident.name == sym!(collect) && match_trait_method(cx, &args[0], &paths::ITERATOR);
         if let Some(ref generic_args) = chain_method.args;
         if let Some(GenericArg::Type(ref ty)) = generic_args.args.get(0);
@@ -2437,7 +2437,7 @@ fn check_needless_collect<'a, 'tcx>(expr: &'tcx Expr<'_>, cx: &LateContext<'a, '
 
 fn shorten_span(expr: &Expr<'_>, target_fn_name: Symbol) -> Span {
     let mut current_expr = expr;
-    while let ExprKind::MethodCall(ref path, ref span, ref args) = current_expr.kind {
+    while let ExprKind::MethodCall(ref path, ref span, ref args, _) = current_expr.kind {
         if path.ident.name == target_fn_name {
             return expr.span.with_lo(span.lo());
         }
diff --git a/src/tools/clippy/clippy_lints/src/map_clone.rs b/src/tools/clippy/clippy_lints/src/map_clone.rs
index d5adf6b0f0d..8f4fdc685ef 100644
--- a/src/tools/clippy/clippy_lints/src/map_clone.rs
+++ b/src/tools/clippy/clippy_lints/src/map_clone.rs
@@ -49,7 +49,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MapClone {
         }
 
         if_chain! {
-            if let hir::ExprKind::MethodCall(ref method, _, ref args) = e.kind;
+            if let hir::ExprKind::MethodCall(ref method, _, ref args, _) = e.kind;
             if args.len() == 2;
             if method.ident.as_str() == "map";
             let ty = cx.tables.expr_ty(&args[0]);
@@ -75,7 +75,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for MapClone {
                                     }
                                 }
                             },
-                            hir::ExprKind::MethodCall(ref method, _, ref obj) => {
+                            hir::ExprKind::MethodCall(ref method, _, ref obj, _) => {
                                 if ident_eq(name, &obj[0]) && method.ident.as_str() == "clone"
                                     && match_trait_method(cx, closure_expr, &paths::CLONE_TRAIT) {
 
diff --git a/src/tools/clippy/clippy_lints/src/map_unit_fn.rs b/src/tools/clippy/clippy_lints/src/map_unit_fn.rs
index fecd91c7814..8f4b674c04f 100644
--- a/src/tools/clippy/clippy_lints/src/map_unit_fn.rs
+++ b/src/tools/clippy/clippy_lints/src/map_unit_fn.rs
@@ -125,7 +125,7 @@ fn reduce_unit_expression<'a>(cx: &LateContext<'_, '_>, expr: &'a hir::Expr<'_>)
     }
 
     match expr.kind {
-        hir::ExprKind::Call(_, _) | hir::ExprKind::MethodCall(_, _, _) => {
+        hir::ExprKind::Call(_, _) | hir::ExprKind::MethodCall(_, _, _, _) => {
             // Calls can't be reduced any more
             Some(expr.span)
         },
diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs
index 214cf0c130f..f25a9782813 100644
--- a/src/tools/clippy/clippy_lints/src/methods/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs
@@ -1429,7 +1429,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Methods {
         }
 
         match expr.kind {
-            hir::ExprKind::MethodCall(ref method_call, ref method_span, ref args) => {
+            hir::ExprKind::MethodCall(ref method_call, ref method_span, ref args, _) => {
                 lint_or_fun_call(cx, expr, *method_span, &method_call.ident.as_str(), args);
                 lint_expect_fun_call(cx, expr, *method_span, &method_call.ident.as_str(), args);
 
@@ -1677,7 +1677,7 @@ fn lint_or_fun_call<'a, 'tcx>(
         or_has_args: bool,
         span: Span,
     ) {
-        if let hir::ExprKind::MethodCall(ref path, _, ref args) = &arg.kind {
+        if let hir::ExprKind::MethodCall(ref path, _, ref args, _) = &arg.kind {
             if path.ident.as_str() == "len" {
                 let ty = walk_ptrs_ty(cx.tables.expr_ty(&args[0]));
 
@@ -1751,7 +1751,7 @@ fn lint_or_fun_call<'a, 'tcx>(
                     );
                 }
             },
-            hir::ExprKind::MethodCall(_, span, ref or_args) => check_general_case(
+            hir::ExprKind::MethodCall(_, span, ref or_args, _) => check_general_case(
                 cx,
                 name,
                 method_span,
@@ -1782,7 +1782,7 @@ fn lint_expect_fun_call(
         loop {
             arg_root = match &arg_root.kind {
                 hir::ExprKind::AddrOf(hir::BorrowKind::Ref, _, expr) => expr,
-                hir::ExprKind::MethodCall(method_name, _, call_args) => {
+                hir::ExprKind::MethodCall(method_name, _, call_args, _) => {
                     if call_args.len() == 1
                         && (method_name.ident.name == sym!(as_str) || method_name.ident.name == sym!(as_ref))
                         && {
@@ -2002,7 +2002,7 @@ fn lint_clone_on_copy(cx: &LateContext<'_, '_>, expr: &hir::Expr<'_>, arg: &hir:
                     // &*x is a nop, &x.clone() is not
                     hir::ExprKind::AddrOf(..) => return,
                     // (*x).func() is useless, x.clone().func() can work in case func borrows mutably
-                    hir::ExprKind::MethodCall(_, _, parent_args) if expr.hir_id == parent_args[0].hir_id => return,
+                    hir::ExprKind::MethodCall(_, _, parent_args, _) if expr.hir_id == parent_args[0].hir_id => return,
 
                     _ => {},
                 },
@@ -2478,7 +2478,7 @@ fn derefs_to_slice<'a, 'tcx>(
         }
     }
 
-    if let hir::ExprKind::MethodCall(ref path, _, ref args) = expr.kind {
+    if let hir::ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind {
         if path.ident.name == sym!(iter) && may_slice(cx, cx.tables.expr_ty(&args[0])) {
             Some(&args[0])
         } else {
@@ -3182,7 +3182,7 @@ fn lint_asref(cx: &LateContext<'_, '_>, expr: &hir::Expr<'_>, call_name: &str, a
             // allow the `as_ref` or `as_mut` if it is followed by another method call
             if_chain! {
                 if let Some(parent) = get_parent_expr(cx, expr);
-                if let hir::ExprKind::MethodCall(_, ref span, _) = parent.kind;
+                if let hir::ExprKind::MethodCall(_, ref span, _, _) = parent.kind;
                 if span != &expr.span;
                 then {
                     return;
@@ -3310,7 +3310,7 @@ fn lint_option_as_ref_deref<'a, 'tcx>(
             let closure_expr = remove_blocks(&closure_body.value);
 
             match &closure_expr.kind {
-                hir::ExprKind::MethodCall(_, _, args) => {
+                hir::ExprKind::MethodCall(_, _, args, _) => {
                     if_chain! {
                         if args.len() == 1;
                         if let hir::ExprKind::Path(qpath) = &args[0].kind;
diff --git a/src/tools/clippy/clippy_lints/src/misc.rs b/src/tools/clippy/clippy_lints/src/misc.rs
index f513161bbbc..a0947608e60 100644
--- a/src/tools/clippy/clippy_lints/src/misc.rs
+++ b/src/tools/clippy/clippy_lints/src/misc.rs
@@ -545,7 +545,7 @@ fn is_signum(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> bool {
     }
 
     if_chain! {
-        if let ExprKind::MethodCall(ref method_name, _, ref expressions) = expr.kind;
+        if let ExprKind::MethodCall(ref method_name, _, ref expressions, _) = expr.kind;
         if sym!(signum) == method_name.ident.name;
         // Check that the receiver of the signum() is a float (expressions[0] is the receiver of
         // the method call)
@@ -572,7 +572,7 @@ fn is_array(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> bool {
 
 fn check_to_owned(cx: &LateContext<'_, '_>, expr: &Expr<'_>, other: &Expr<'_>) {
     let (arg_ty, snip) = match expr.kind {
-        ExprKind::MethodCall(.., ref args) if args.len() == 1 => {
+        ExprKind::MethodCall(.., ref args, _) if args.len() == 1 => {
             if match_trait_method(cx, expr, &paths::TO_STRING) || match_trait_method(cx, expr, &paths::TO_OWNED) {
                 (cx.tables.expr_ty_adjusted(&args[0]), snippet(cx, args[0].span, ".."))
             } else {
diff --git a/src/tools/clippy/clippy_lints/src/mut_reference.rs b/src/tools/clippy/clippy_lints/src/mut_reference.rs
index 58a8e1a1064..7fcf15f8acb 100644
--- a/src/tools/clippy/clippy_lints/src/mut_reference.rs
+++ b/src/tools/clippy/clippy_lints/src/mut_reference.rs
@@ -42,7 +42,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnnecessaryMutPassed {
                     );
                 }
             },
-            ExprKind::MethodCall(ref path, _, ref arguments) => {
+            ExprKind::MethodCall(ref path, _, ref arguments, _) => {
                 let def_id = cx.tables.type_dependent_def_id(e.hir_id).unwrap();
                 let substs = cx.tables.node_substs(e.hir_id);
                 let method_type = cx.tcx.type_of(def_id).subst(cx.tcx, substs);
diff --git a/src/tools/clippy/clippy_lints/src/open_options.rs b/src/tools/clippy/clippy_lints/src/open_options.rs
index 9d3b67988db..2d4629b683f 100644
--- a/src/tools/clippy/clippy_lints/src/open_options.rs
+++ b/src/tools/clippy/clippy_lints/src/open_options.rs
@@ -29,7 +29,7 @@ declare_lint_pass!(OpenOptions => [NONSENSICAL_OPEN_OPTIONS]);
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for OpenOptions {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, e: &'tcx Expr<'_>) {
-        if let ExprKind::MethodCall(ref path, _, ref arguments) = e.kind {
+        if let ExprKind::MethodCall(ref path, _, ref arguments, _) = e.kind {
             let obj_ty = walk_ptrs_ty(cx.tables.expr_ty(&arguments[0]));
             if path.ident.name == sym!(open) && match_type(cx, obj_ty, &paths::OPEN_OPTIONS) {
                 let mut options = Vec::new();
@@ -57,7 +57,7 @@ enum OpenOption {
 }
 
 fn get_open_options(cx: &LateContext<'_, '_>, argument: &Expr<'_>, options: &mut Vec<(OpenOption, Argument)>) {
-    if let ExprKind::MethodCall(ref path, _, ref arguments) = argument.kind {
+    if let ExprKind::MethodCall(ref path, _, ref arguments, _) = argument.kind {
         let obj_ty = walk_ptrs_ty(cx.tables.expr_ty(&arguments[0]));
 
         // Only proceed if this is a call on some object of type std::fs::OpenOptions
diff --git a/src/tools/clippy/clippy_lints/src/option_env_unwrap.rs b/src/tools/clippy/clippy_lints/src/option_env_unwrap.rs
index 66dfa20edb5..fd653044a1b 100644
--- a/src/tools/clippy/clippy_lints/src/option_env_unwrap.rs
+++ b/src/tools/clippy/clippy_lints/src/option_env_unwrap.rs
@@ -35,7 +35,7 @@ declare_lint_pass!(OptionEnvUnwrap => [OPTION_ENV_UNWRAP]);
 impl EarlyLintPass for OptionEnvUnwrap {
     fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
         if_chain! {
-            if let ExprKind::MethodCall(path_segment, args) = &expr.kind;
+            if let ExprKind::MethodCall(path_segment, args, _) = &expr.kind;
             let method_name = path_segment.ident.as_str();
             if method_name == "expect" || method_name == "unwrap";
             if let ExprKind::Call(caller, _) = &args[0].kind;
diff --git a/src/tools/clippy/clippy_lints/src/path_buf_push_overwrite.rs b/src/tools/clippy/clippy_lints/src/path_buf_push_overwrite.rs
index bdbaf2695c8..88ad1e0914f 100644
--- a/src/tools/clippy/clippy_lints/src/path_buf_push_overwrite.rs
+++ b/src/tools/clippy/clippy_lints/src/path_buf_push_overwrite.rs
@@ -43,7 +43,7 @@ declare_lint_pass!(PathBufPushOverwrite => [PATH_BUF_PUSH_OVERWRITE]);
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for PathBufPushOverwrite {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
         if_chain! {
-            if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind;
             if path.ident.name == sym!(push);
             if args.len() == 2;
             if match_type(cx, walk_ptrs_ty(cx.tables.expr_ty(&args[0])), &paths::PATH_BUF);
diff --git a/src/tools/clippy/clippy_lints/src/precedence.rs b/src/tools/clippy/clippy_lints/src/precedence.rs
index cc783baa687..7dce23dd223 100644
--- a/src/tools/clippy/clippy_lints/src/precedence.rs
+++ b/src/tools/clippy/clippy_lints/src/precedence.rs
@@ -103,7 +103,7 @@ impl EarlyLintPass for Precedence {
         }
 
         if let ExprKind::Unary(UnOp::Neg, ref rhs) = expr.kind {
-            if let ExprKind::MethodCall(ref path_segment, ref args) = rhs.kind {
+            if let ExprKind::MethodCall(ref path_segment, ref args, _) = rhs.kind {
                 let path_segment_str = path_segment.ident.name.as_str();
                 if let Some(slf) = args.first() {
                     if let ExprKind::Lit(ref lit) = slf.kind {
diff --git a/src/tools/clippy/clippy_lints/src/ptr_offset_with_cast.rs b/src/tools/clippy/clippy_lints/src/ptr_offset_with_cast.rs
index ffc59d43750..d23d7e59b73 100644
--- a/src/tools/clippy/clippy_lints/src/ptr_offset_with_cast.rs
+++ b/src/tools/clippy/clippy_lints/src/ptr_offset_with_cast.rs
@@ -90,7 +90,7 @@ fn expr_as_ptr_offset_call<'a, 'tcx>(
     cx: &LateContext<'a, 'tcx>,
     expr: &'tcx Expr<'_>,
 ) -> Option<(&'tcx Expr<'tcx>, &'tcx Expr<'tcx>, Method)> {
-    if let ExprKind::MethodCall(ref path_segment, _, ref args) = expr.kind {
+    if let ExprKind::MethodCall(ref path_segment, _, ref args, _) = expr.kind {
         if is_expr_ty_raw_ptr(cx, &args[0]) {
             if path_segment.ident.name == sym!(offset) {
                 return Some((&args[0], &args[1], Method::Offset));
diff --git a/src/tools/clippy/clippy_lints/src/question_mark.rs b/src/tools/clippy/clippy_lints/src/question_mark.rs
index e4361b00fb4..3591972fe08 100644
--- a/src/tools/clippy/clippy_lints/src/question_mark.rs
+++ b/src/tools/clippy/clippy_lints/src/question_mark.rs
@@ -50,7 +50,7 @@ impl QuestionMark {
     fn check_is_none_and_early_return_none(cx: &LateContext<'_, '_>, expr: &Expr<'_>) {
         if_chain! {
             if let Some((if_expr, body, else_)) = higher::if_block(&expr);
-            if let ExprKind::MethodCall(segment, _, args) = &if_expr.kind;
+            if let ExprKind::MethodCall(segment, _, args, _) = &if_expr.kind;
             if segment.ident.name == sym!(is_none);
             if Self::expression_returns_none(cx, body);
             if let Some(subject) = args.get(0);
diff --git a/src/tools/clippy/clippy_lints/src/ranges.rs b/src/tools/clippy/clippy_lints/src/ranges.rs
index 52e540d4e00..fcd02a196e7 100644
--- a/src/tools/clippy/clippy_lints/src/ranges.rs
+++ b/src/tools/clippy/clippy_lints/src/ranges.rs
@@ -129,20 +129,20 @@ declare_lint_pass!(Ranges => [
 
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Ranges {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'_>) {
-        if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind {
+        if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind {
             let name = path.ident.as_str();
             if name == "zip" && args.len() == 2 {
                 let iter = &args[0].kind;
                 let zip_arg = &args[1];
                 if_chain! {
                     // `.iter()` call
-                    if let ExprKind::MethodCall(ref iter_path, _, ref iter_args ) = *iter;
+                    if let ExprKind::MethodCall(ref iter_path, _, ref iter_args , _) = *iter;
                     if iter_path.ident.name == sym!(iter);
                     // range expression in `.zip()` call: `0..x.len()`
                     if let Some(higher::Range { start: Some(start), end: Some(end), .. }) = higher::range(cx, zip_arg);
                     if is_integer_const(cx, start, 0);
                     // `.len()` call
-                    if let ExprKind::MethodCall(ref len_path, _, ref len_args) = end.kind;
+                    if let ExprKind::MethodCall(ref len_path, _, ref len_args, _) = end.kind;
                     if len_path.ident.name == sym!(len) && len_args.len() == 1;
                     // `.iter()` and `.len()` called on same `Path`
                     if let ExprKind::Path(QPath::Resolved(_, ref iter_path)) = iter_args[0].kind;
diff --git a/src/tools/clippy/clippy_lints/src/redundant_pattern_matching.rs b/src/tools/clippy/clippy_lints/src/redundant_pattern_matching.rs
index 7ee298e9833..f16b916441a 100644
--- a/src/tools/clippy/clippy_lints/src/redundant_pattern_matching.rs
+++ b/src/tools/clippy/clippy_lints/src/redundant_pattern_matching.rs
@@ -89,7 +89,7 @@ fn find_sugg_for_if_let<'a, 'tcx>(
     // check that `while_let_on_iterator` lint does not trigger
     if_chain! {
         if keyword == "while";
-        if let ExprKind::MethodCall(method_path, _, _) = op.kind;
+        if let ExprKind::MethodCall(method_path, _, _, _) = op.kind;
         if method_path.ident.name == sym!(next);
         if match_trait_method(cx, op, &paths::ITERATOR);
         then {
diff --git a/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs b/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs
index a7c4f2c2291..44c9cc19cfb 100644
--- a/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs
+++ b/src/tools/clippy/clippy_lints/src/slow_vector_initialization.rs
@@ -207,7 +207,7 @@ impl<'a, 'tcx> VectorInitializationVisitor<'a, 'tcx> {
     fn search_slow_extend_filling(&mut self, expr: &'tcx Expr<'_>) {
         if_chain! {
             if self.initialization_found;
-            if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind;
             if let ExprKind::Path(ref qpath_subj) = args[0].kind;
             if match_qpath(&qpath_subj, &[&*self.vec_alloc.variable_name.as_str()]);
             if path.ident.name == sym!(extend);
@@ -224,7 +224,7 @@ impl<'a, 'tcx> VectorInitializationVisitor<'a, 'tcx> {
     fn search_slow_resize_filling(&mut self, expr: &'tcx Expr<'_>) {
         if_chain! {
             if self.initialization_found;
-            if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind;
             if let ExprKind::Path(ref qpath_subj) = args[0].kind;
             if match_qpath(&qpath_subj, &[&*self.vec_alloc.variable_name.as_str()]);
             if path.ident.name == sym!(resize);
@@ -246,7 +246,7 @@ impl<'a, 'tcx> VectorInitializationVisitor<'a, 'tcx> {
     /// Returns `true` if give expression is `repeat(0).take(...)`
     fn is_repeat_take(&self, expr: &Expr<'_>) -> bool {
         if_chain! {
-            if let ExprKind::MethodCall(ref take_path, _, ref take_args) = expr.kind;
+            if let ExprKind::MethodCall(ref take_path, _, ref take_args, _) = expr.kind;
             if take_path.ident.name == sym!(take);
 
             // Check that take is applied to `repeat(0)`
diff --git a/src/tools/clippy/clippy_lints/src/strings.rs b/src/tools/clippy/clippy_lints/src/strings.rs
index f84566ef707..d8e4bff3d70 100644
--- a/src/tools/clippy/clippy_lints/src/strings.rs
+++ b/src/tools/clippy/clippy_lints/src/strings.rs
@@ -164,7 +164,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for StringLitAsBytes {
         use rustc_ast::ast::LitKind;
 
         if_chain! {
-            if let ExprKind::MethodCall(path, _, args) = &e.kind;
+            if let ExprKind::MethodCall(path, _, args, _) = &e.kind;
             if path.ident.name == sym!(as_bytes);
             if let ExprKind::Lit(lit) = &args[0].kind;
             if let LitKind::Str(lit_content, _) = &lit.node;
diff --git a/src/tools/clippy/clippy_lints/src/to_digit_is_some.rs b/src/tools/clippy/clippy_lints/src/to_digit_is_some.rs
index c6302ca03d9..4f132c6db76 100644
--- a/src/tools/clippy/clippy_lints/src/to_digit_is_some.rs
+++ b/src/tools/clippy/clippy_lints/src/to_digit_is_some.rs
@@ -34,12 +34,12 @@ declare_lint_pass!(ToDigitIsSome => [TO_DIGIT_IS_SOME]);
 impl<'a, 'tcx> LateLintPass<'a, 'tcx> for ToDigitIsSome {
     fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx hir::Expr<'_>) {
         if_chain! {
-            if let hir::ExprKind::MethodCall(is_some_path, _, is_some_args) = &expr.kind;
+            if let hir::ExprKind::MethodCall(is_some_path, _, is_some_args, _) = &expr.kind;
             if is_some_path.ident.name.as_str() == "is_some";
             if let [to_digit_expr] = &**is_some_args;
             then {
                 let match_result = match &to_digit_expr.kind {
-                    hir::ExprKind::MethodCall(to_digits_path, _, to_digit_args) => {
+                    hir::ExprKind::MethodCall(to_digits_path, _, to_digit_args, _) => {
                         if_chain! {
                             if let [char_arg, radix_arg] = &**to_digit_args;
                             if to_digits_path.ident.name.as_str() == "to_digit";
diff --git a/src/tools/clippy/clippy_lints/src/types.rs b/src/tools/clippy/clippy_lints/src/types.rs
index bc5fe44b30f..57d5b27df57 100644
--- a/src/tools/clippy/clippy_lints/src/types.rs
+++ b/src/tools/clippy/clippy_lints/src/types.rs
@@ -778,7 +778,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnitArg {
         }
 
         match expr.kind {
-            ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args) => {
+            ExprKind::Call(_, args) | ExprKind::MethodCall(_, _, args, _) => {
                 let args_to_recover = args
                     .iter()
                     .filter(|arg| {
@@ -1262,14 +1262,14 @@ fn check_loss_of_sign(cx: &LateContext<'_, '_>, expr: &Expr<'_>, op: &Expr<'_>,
     }
 
     // don't lint for the result of methods that always return non-negative values
-    if let ExprKind::MethodCall(ref path, _, _) = op.kind {
+    if let ExprKind::MethodCall(ref path, _, _, _) = op.kind {
         let mut method_name = path.ident.name.as_str();
         let whitelisted_methods = ["abs", "checked_abs", "rem_euclid", "checked_rem_euclid"];
 
         if_chain! {
             if method_name == "unwrap";
             if let Some(arglist) = method_chain_args(op, &["unwrap"]);
-            if let ExprKind::MethodCall(ref inner_path, _, _) = &arglist[0][0].kind;
+            if let ExprKind::MethodCall(ref inner_path, _, _, _) = &arglist[0][0].kind;
             then {
                 method_name = inner_path.ident.name.as_str();
             }
diff --git a/src/tools/clippy/clippy_lints/src/unused_io_amount.rs b/src/tools/clippy/clippy_lints/src/unused_io_amount.rs
index b85134e3d7a..5f4b5fd9dd9 100644
--- a/src/tools/clippy/clippy_lints/src/unused_io_amount.rs
+++ b/src/tools/clippy/clippy_lints/src/unused_io_amount.rs
@@ -52,7 +52,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedIoAmount {
                 }
             },
 
-            hir::ExprKind::MethodCall(ref path, _, ref args) => match &*path.ident.as_str() {
+            hir::ExprKind::MethodCall(ref path, _, ref args, _) => match &*path.ident.as_str() {
                 "expect" | "unwrap" | "unwrap_or" | "unwrap_or_else" => {
                     check_method_call(cx, &args[0], expr);
                 },
@@ -65,7 +65,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UnusedIoAmount {
 }
 
 fn check_method_call(cx: &LateContext<'_, '_>, call: &hir::Expr<'_>, expr: &hir::Expr<'_>) {
-    if let hir::ExprKind::MethodCall(ref path, _, _) = call.kind {
+    if let hir::ExprKind::MethodCall(ref path, _, _, _) = call.kind {
         let symbol = &*path.ident.as_str();
         let read_trait = match_trait_method(cx, call, &paths::IO_READ);
         let write_trait = match_trait_method(cx, call, &paths::IO_WRITE);
diff --git a/src/tools/clippy/clippy_lints/src/unwrap.rs b/src/tools/clippy/clippy_lints/src/unwrap.rs
index 036dd16a224..a6c7b5d405c 100644
--- a/src/tools/clippy/clippy_lints/src/unwrap.rs
+++ b/src/tools/clippy/clippy_lints/src/unwrap.rs
@@ -112,7 +112,7 @@ fn collect_unwrap_info<'a, 'tcx>(
         return collect_unwrap_info(cx, expr, branch, !invert);
     } else {
         if_chain! {
-            if let ExprKind::MethodCall(method_name, _, args) = &expr.kind;
+            if let ExprKind::MethodCall(method_name, _, args, _) = &expr.kind;
             if let ExprKind::Path(QPath::Resolved(None, path)) = &args[0].kind;
             let ty = cx.tables.expr_ty(&args[0]);
             let name = method_name.ident.as_str();
@@ -166,7 +166,7 @@ impl<'a, 'tcx> Visitor<'tcx> for UnwrappableVariablesVisitor<'a, 'tcx> {
         } else {
             // find `unwrap[_err]()` calls:
             if_chain! {
-                if let ExprKind::MethodCall(ref method_name, _, ref args) = expr.kind;
+                if let ExprKind::MethodCall(ref method_name, _, ref args, _) = expr.kind;
                 if let ExprKind::Path(QPath::Resolved(None, ref path)) = args[0].kind;
                 if [sym!(unwrap), sym!(unwrap_err)].contains(&method_name.ident.name);
                 let call_to_unwrap = method_name.ident.name == sym!(unwrap);
diff --git a/src/tools/clippy/clippy_lints/src/useless_conversion.rs b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
index 141035a980a..78d249482d5 100644
--- a/src/tools/clippy/clippy_lints/src/useless_conversion.rs
+++ b/src/tools/clippy/clippy_lints/src/useless_conversion.rs
@@ -61,7 +61,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for UselessConversion {
                 }
             },
 
-            ExprKind::MethodCall(ref name, .., ref args) => {
+            ExprKind::MethodCall(ref name, .., ref args, _) => {
                 if match_trait_method(cx, e, &paths::INTO) && &*name.ident.as_str() == "into" {
                     let a = cx.tables.expr_ty(e);
                     let b = cx.tables.expr_ty(&args[0]);
diff --git a/src/tools/clippy/clippy_lints/src/utils/author.rs b/src/tools/clippy/clippy_lints/src/utils/author.rs
index bbcf396eef7..8b58bbb5e65 100644
--- a/src/tools/clippy/clippy_lints/src/utils/author.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/author.rs
@@ -250,8 +250,8 @@ impl<'tcx> Visitor<'tcx> for PrintVisitor {
                     self.visit_expr(arg);
                 }
             },
-            ExprKind::MethodCall(ref _method_name, ref _generics, ref _args) => {
-                println!("MethodCall(ref method_name, ref generics, ref args) = {};", current);
+            ExprKind::MethodCall(ref _method_name, ref _generics, ref _args, ref _fn_span) => {
+                println!("MethodCall(ref method_name, ref generics, ref args, ref fn_span) = {};", current);
                 println!("    // unimplemented: `ExprKind::MethodCall` is not further destructured at the moment");
             },
             ExprKind::Tup(ref elements) => {
diff --git a/src/tools/clippy/clippy_lints/src/utils/hir_utils.rs b/src/tools/clippy/clippy_lints/src/utils/hir_utils.rs
index f8d197c15e8..473a730dad5 100644
--- a/src/tools/clippy/clippy_lints/src/utils/hir_utils.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/hir_utils.rs
@@ -132,7 +132,7 @@ impl<'a, 'tcx> SpanlessEq<'a, 'tcx> {
                             && self.eq_pat(&l.pat, &r.pat)
                     })
             },
-            (&ExprKind::MethodCall(l_path, _, l_args), &ExprKind::MethodCall(r_path, _, r_args)) => {
+            (&ExprKind::MethodCall(l_path, _, l_args, _), &ExprKind::MethodCall(r_path, _, r_args, _)) => {
                 !self.ignore_fn && self.eq_path_segment(l_path, r_path) && self.eq_exprs(l_args, r_args)
             },
             (&ExprKind::Repeat(ref le, ref ll_id), &ExprKind::Repeat(ref re, ref rl_id)) => {
@@ -542,7 +542,7 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
 
                 s.hash(&mut self.s);
             },
-            ExprKind::MethodCall(ref path, ref _tys, args) => {
+            ExprKind::MethodCall(ref path, ref _tys, args, ref _fn_span) => {
                 self.hash_name(path.ident.name);
                 self.hash_exprs(args);
             },
diff --git a/src/tools/clippy/clippy_lints/src/utils/inspector.rs b/src/tools/clippy/clippy_lints/src/utils/inspector.rs
index 9b672b9ec22..649b166e98e 100644
--- a/src/tools/clippy/clippy_lints/src/utils/inspector.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/inspector.rs
@@ -167,7 +167,7 @@ fn print_expr(cx: &LateContext<'_, '_>, expr: &hir::Expr<'_>, indent: usize) {
                 print_expr(cx, arg, indent + 1);
             }
         },
-        hir::ExprKind::MethodCall(ref path, _, args) => {
+        hir::ExprKind::MethodCall(ref path, _, args, _) => {
             println!("{}MethodCall", ind);
             println!("{}method name: {}", ind, path.ident.name);
             for arg in args {
diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints.rs
index 8e1b047f6f8..89e2bcdd793 100644
--- a/src/tools/clippy/clippy_lints/src/utils/internal_lints.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints.rs
@@ -402,7 +402,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for CompilerLintFunctions {
         }
 
         if_chain! {
-            if let ExprKind::MethodCall(ref path, _, ref args) = expr.kind;
+            if let ExprKind::MethodCall(ref path, _, ref args, _) = expr.kind;
             let fn_name = path.ident;
             if let Some(sugg) = self.map.get(&*fn_name.as_str());
             let ty = walk_ptrs_ty(cx.tables.expr_ty(&args[0]));
@@ -491,7 +491,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for CollapsibleCalls {
             let stmts = &block.stmts;
             if stmts.len() == 1 && block.expr.is_none();
             if let StmtKind::Semi(only_expr) = &stmts[0].kind;
-            if let ExprKind::MethodCall(ref ps, _, ref span_call_args) = &only_expr.kind;
+            if let ExprKind::MethodCall(ref ps, _, ref span_call_args, _) = &only_expr.kind;
             let and_then_snippets = get_and_then_snippets(cx, and_then_args);
             let mut sle = SpanlessEq::new(cx).ignore_fn();
             then {
diff --git a/src/tools/clippy/clippy_lints/src/utils/mod.rs b/src/tools/clippy/clippy_lints/src/utils/mod.rs
index 7b59917c2bb..60ab19e71f5 100644
--- a/src/tools/clippy/clippy_lints/src/utils/mod.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/mod.rs
@@ -379,7 +379,7 @@ pub fn method_calls<'tcx>(
 
     let mut current = expr;
     for _ in 0..max_depth {
-        if let ExprKind::MethodCall(path, span, args) = &current.kind {
+        if let ExprKind::MethodCall(path, span, args, _) = &current.kind {
             if args.iter().any(|e| e.span.from_expansion()) {
                 break;
             }
@@ -406,7 +406,7 @@ pub fn method_chain_args<'a>(expr: &'a Expr<'_>, methods: &[&str]) -> Option<Vec
     let mut matched = Vec::with_capacity(methods.len());
     for method_name in methods.iter().rev() {
         // method chains are stored last -> first
-        if let ExprKind::MethodCall(ref path, _, ref args) = current.kind {
+        if let ExprKind::MethodCall(ref path, _, ref args, _) = current.kind {
             if path.ident.name.as_str() == *method_name {
                 if args.iter().any(|e| e.span.from_expansion()) {
                     return None;
@@ -1324,7 +1324,7 @@ pub fn is_must_use_func_call(cx: &LateContext<'_, '_>, expr: &Expr<'_>) -> bool
                 None
             }
         },
-        ExprKind::MethodCall(_, _, _) => cx.tables.type_dependent_def_id(expr.hir_id),
+        ExprKind::MethodCall(_, _, _, _) => cx.tables.type_dependent_def_id(expr.hir_id),
         _ => None,
     };
 
diff --git a/src/tools/clippy/clippy_lints/src/utils/ptr.rs b/src/tools/clippy/clippy_lints/src/utils/ptr.rs
index fb6bd5e8158..ee336ecc58d 100644
--- a/src/tools/clippy/clippy_lints/src/utils/ptr.rs
+++ b/src/tools/clippy/clippy_lints/src/utils/ptr.rs
@@ -58,7 +58,7 @@ impl<'a, 'tcx> Visitor<'tcx> for PtrCloneVisitor<'a, 'tcx> {
         if self.abort {
             return;
         }
-        if let ExprKind::MethodCall(ref seg, _, ref args) = expr.kind {
+        if let ExprKind::MethodCall(ref seg, _, ref args, _) = expr.kind {
             if args.len() == 1 && match_var(&args[0], self.name) {
                 if seg.ident.name.as_str() == "capacity" {
                     self.abort = true;
diff --git a/src/tools/clippy/clippy_lints/src/verbose_file_reads.rs b/src/tools/clippy/clippy_lints/src/verbose_file_reads.rs
index 7247518e19b..6d420d491c5 100644
--- a/src/tools/clippy/clippy_lints/src/verbose_file_reads.rs
+++ b/src/tools/clippy/clippy_lints/src/verbose_file_reads.rs
@@ -59,7 +59,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for VerboseFileReads {
 
 fn is_file_read_to_end<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'tcx>) -> bool {
     if_chain! {
-        if let ExprKind::MethodCall(method_name, _, exprs) = expr.kind;
+        if let ExprKind::MethodCall(method_name, _, exprs, _) = expr.kind;
         if method_name.ident.as_str() == "read_to_end";
         if let ExprKind::Path(QPath::Resolved(None, _)) = &exprs[0].kind;
         let ty = cx.tables.expr_ty(&exprs[0]);
@@ -73,7 +73,7 @@ fn is_file_read_to_end<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'t
 
 fn is_file_read_to_string<'a, 'tcx>(cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr<'tcx>) -> bool {
     if_chain! {
-        if let ExprKind::MethodCall(method_name, _, exprs) = expr.kind;
+        if let ExprKind::MethodCall(method_name, _, exprs, _) = expr.kind;
         if method_name.ident.as_str() == "read_to_string";
         if let ExprKind::Path(QPath::Resolved(None, _)) = &exprs[0].kind;
         let ty = cx.tables.expr_ty(&exprs[0]);