[parser] parenthesized Literals are not valid AssignmentPatterns

src/parsing/preparser.cc

Index: src/parsing/preparser.cc
diff --git a/src/parsing/preparser.cc b/src/parsing/preparser.cc
index 4af7fca7b7160293229d8d8b9c47feb7526a28fc..cca31a9bc7820d8bf23887f93d29a6669c24c134 100644
--- a/src/parsing/preparser.cc
+++ b/src/parsing/preparser.cc
@@ -591,7 +591,8 @@ PreParser::Statement PreParser::ParseVariableDeclarations(
       }
     }
 
-    is_pattern = pattern.IsObjectLiteral() || pattern.IsArrayLiteral();
+    is_pattern = (pattern.IsObjectLiteral() || pattern.IsArrayLiteral()) &&
+                 !pattern.is_parenthesized();
 
     bool is_for_iteration_variable =
         var_context == kForStatement &&