Make break and continue hygienic

Makes labelled loops hygiene by performing renaming of the labels
defined in e.g. `'x: loop { ... }` and then used in break and continue
statements within loop body so that they act hygienically when used with
macros.

Closes #12262.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index fed2034cd26..31e16cd8c7d 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -1822,7 +1822,7 @@ impl Parser {
             let ex = if Parser::token_is_lifetime(&self.token) {
                 let lifetime = self.get_lifetime();
                 self.bump();
-                ExprAgain(Some(lifetime.name))
+                ExprAgain(Some(lifetime))
             } else {
                 ExprAgain(None)
             };
@@ -1885,7 +1885,7 @@ impl Parser {
             if Parser::token_is_lifetime(&self.token) {
                 let lifetime = self.get_lifetime();
                 self.bump();
-                ex = ExprBreak(Some(lifetime.name));
+                ex = ExprBreak(Some(lifetime));
             } else {
                 ex = ExprBreak(None);
             }
@@ -2579,7 +2579,7 @@ impl Parser {
             let ex = if Parser::token_is_lifetime(&self.token) {
                 let lifetime = self.get_lifetime();
                 self.bump();
-                ExprAgain(Some(lifetime.name))
+                ExprAgain(Some(lifetime))
             } else {
                 ExprAgain(None)
             };