Auto merge of #63648 - Centril:rollup-2kpdrj1, r=Centril

Rollup of 6 pull requests

Successful merges:

 - #63149 (resolve: Populate external modules in more automatic and lazy way)
 - #63545 (Feature gate 'yield $expr?' pre-expansion)
 - #63548 (Update rustc-demangle to 0.1.16.)
 - #63558 (Remap paths for proc-macro crates.)
 - #63641 (add git keyword to submodule comments in config.example.toml)
 - #63642 (Rename overflowing_{add,sub,mul} intrinsics to wrapping_{add,sub,mul}.)

Failed merges:

r? @ghost

2 files changed, 6 insertions, 0 deletions

diff --git a/src/libsyntax/parse/mod.rs b/src/libsyntax/parse/mod.rs
index 26f78b9c5c7..9088f929372 100644
--- a/src/libsyntax/parse/mod.rs
+++ b/src/libsyntax/parse/mod.rs
@@ -63,6 +63,8 @@ pub struct ParseSess {
     pub let_chains_spans: Lock<Vec<Span>>,
     // Places where `async || ..` exprs were used and should be feature gated.
     pub async_closure_spans: Lock<Vec<Span>>,
+    // Places where `yield e?` exprs were used and should be feature gated.
+    pub yield_spans: Lock<Vec<Span>>,
     pub injected_crate_name: Once<Symbol>,
 }
 
@@ -92,6 +94,7 @@ impl ParseSess {
             param_attr_spans: Lock::new(Vec::new()),
             let_chains_spans: Lock::new(Vec::new()),
             async_closure_spans: Lock::new(Vec::new()),
+            yield_spans: Lock::new(Vec::new()),
             injected_crate_name: Once::new(),
         }
     }
diff --git a/src/libsyntax/parse/parser/expr.rs b/src/libsyntax/parse/parser/expr.rs
index f4b6a926734..ccc6bd15067 100644
--- a/src/libsyntax/parse/parser/expr.rs
+++ b/src/libsyntax/parse/parser/expr.rs
@@ -997,6 +997,9 @@ impl<'a> Parser<'a> {
                     } else {
                         ex = ExprKind::Yield(None);
                     }
+
+                    let span = lo.to(hi);
+                    self.sess.yield_spans.borrow_mut().push(span);
                 } else if self.eat_keyword(kw::Let) {
                     return self.parse_let_expr(attrs);
                 } else if is_span_rust_2018 && self.eat_keyword(kw::Await) {