Disallow 'await' in object literal shorthand position

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 60938c7036dc22222409df0c516109dcd8dd233a..970d49dc0ac410994e736bdad7c072a62eb33848 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -401,10 +401,6 @@ bool ParserTraits::IsUndefined(const AstRawString* identifier) const {
   return identifier == parser_->ast_value_factory()->undefined_string();
 }
 
-bool ParserTraits::IsAwait(const AstRawString* identifier) const {
-  return identifier == parser_->ast_value_factory()->await_string();
-}
-
 bool ParserTraits::IsPrototype(const AstRawString* identifier) const {
   return identifier == parser_->ast_value_factory()->prototype_string();
 }
@@ -2179,13 +2175,6 @@ Statement* Parser::ParseHoistableDeclaration(
     variable_name = name;
   }
 
-  if (V8_UNLIKELY(is_async_function() && this->IsAwait(name))) {
-    ReportMessageAt(scanner()->location(),
-                    MessageTemplate::kAwaitBindingIdentifier);
-    *ok = false;
-    return nullptr;
-  }
-
   FuncNameInferrer::State fni_state(fni_);
   if (fni_ != NULL) fni_->PushEnclosingName(name);
   FunctionLiteral* fun = ParseFunctionLiteral(
@@ -4490,13 +4479,8 @@ Expression* Parser::ParseAsyncFunctionExpression(bool* ok) {
 
   if (peek_any_identifier()) {
     type = FunctionLiteral::kNamedExpression;
-    name = ParseIdentifierOrStrictReservedWord(&is_strict_reserved, CHECK_OK);
-    if (this->IsAwait(name)) {
-      ReportMessageAt(scanner()->location(),
-                      MessageTemplate::kAwaitBindingIdentifier);
-      *ok = false;
-      return nullptr;
-    }
+    name = ParseIdentifierOrStrictReservedWord(FunctionKind::kAsyncFunction,
+                                               &is_strict_reserved, CHECK_OK);
   }
   return ParseFunctionLiteral(name, scanner()->location(),
                               is_strict_reserved ? kFunctionNameIsStrictReserved