Rollup merge of #35858 - shyaamsundhar:patch-1, r=GuillaumeGomez

E0435, E0437 & E0438 New Error Format

Part of #35801 , #35802 and #35803
r? @GuillaumeGomez

Hi! Please review the changes.

1 files changed, 12 insertions, 6 deletions

diff --git a/src/librustc_resolve/lib.rs b/src/librustc_resolve/lib.rs
index 11d9753d906..5641a50ccac 100644
--- a/src/librustc_resolve/lib.rs
+++ b/src/librustc_resolve/lib.rs
@@ -251,20 +251,24 @@ fn resolve_struct_error<'b, 'a: 'b, 'c>(resolver: &'b Resolver<'a>,
             err
         }
         ResolutionError::TypeNotMemberOfTrait(type_, trait_) => {
-            struct_span_err!(resolver.session,
+            let mut err = struct_span_err!(resolver.session,
                              span,
                              E0437,
                              "type `{}` is not a member of trait `{}`",
                              type_,
-                             trait_)
+                             trait_);
+            err.span_label(span, &format!("not a member of trait `Foo`"));
+            err
         }
         ResolutionError::ConstNotMemberOfTrait(const_, trait_) => {
-            struct_span_err!(resolver.session,
+            let mut err = struct_span_err!(resolver.session,
                              span,
                              E0438,
                              "const `{}` is not a member of trait `{}`",
                              const_,
-                             trait_)
+                             trait_);
+            err.span_label(span, &format!("not a member of trait `Foo`"));
+            err
         }
         ResolutionError::VariableNotBoundInPattern(variable_name, from, to) => {
             struct_span_err!(resolver.session,
@@ -448,10 +452,12 @@ fn resolve_struct_error<'b, 'a: 'b, 'c>(resolver: &'b Resolver<'a>,
                               closure form instead")
         }
         ResolutionError::AttemptToUseNonConstantValueInConstant => {
-            struct_span_err!(resolver.session,
+            let mut err = struct_span_err!(resolver.session,
                              span,
                              E0435,
-                             "attempt to use a non-constant value in a constant")
+                             "attempt to use a non-constant value in a constant");
+            err.span_label(span, &format!("non-constant used with constant"));
+            err
         }
         ResolutionError::BindingShadowsSomethingUnacceptable(what_binding, name, binding) => {
             let shadows_what = PathResolution::new(binding.def().unwrap()).kind_name();