Convert two `rustc_middle::lint` functions to `Span` methods.

`rustc_middle` is a huge crate and it's always good to move stuff out of
it. There are lots of similar methods already on `Span`, so these two
functions, `in_external_macro` and `is_from_async_await`, fit right in.
The diff is big because `in_external_macro` is used a lot by clippy
lints.

1 files changed, 1 insertions, 2 deletions

diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs
index e8a4e9a84c4..e2bafbed6e1 100644
--- a/compiler/rustc_lint/src/builtin.rs
+++ b/compiler/rustc_lint/src/builtin.rs
@@ -29,7 +29,6 @@ use rustc_hir::def_id::{CRATE_DEF_ID, DefId, LocalDefId};
 use rustc_hir::intravisit::FnKind as HirFnKind;
 use rustc_hir::{Body, FnDecl, GenericParamKind, PatKind, PredicateOrigin};
 use rustc_middle::bug;
-use rustc_middle::lint::in_external_macro;
 use rustc_middle::ty::layout::LayoutOf;
 use rustc_middle::ty::print::with_no_trimmed_paths;
 use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitableExt, Upcast, VariantDef};
@@ -2029,7 +2028,7 @@ impl ExplicitOutlivesRequirements {
                 }
 
                 let span = bound.span().find_ancestor_inside(predicate_span)?;
-                if in_external_macro(tcx.sess, span) {
+                if span.in_external_macro(tcx.sess.source_map()) {
                     return None;
                 }