[es6] Fix tail call elimination in single-expression arrow functions.

src/parsing/parser.h

Index: src/parsing/parser.h
diff --git a/src/parsing/parser.h b/src/parsing/parser.h
index dab2f92c0ae032545aa75b53df60362168c4ee94..550abf3f04a96c31d6064b45f534b73f31a45b4d 100644
--- a/src/parsing/parser.h
+++ b/src/parsing/parser.h
@@ -572,6 +572,8 @@ class ParserTraits {
                                   bool name_is_strict_reserved, int pos,
                                   bool* ok);
 
+  V8_INLINE void MarkExpressionInTailPosition(Expression* expression);

[rossberg, 2016/04/26 07:42:31]

Nit: just MarkTailPosition?

[Igor Sheludko, 2016/04/26 08:42:31]

Done.

+
   V8_INLINE void CheckConflictingVarDeclarations(v8::internal::Scope* scope,
                                                  bool* ok);