Shuffle fields around in Scope to save more zone memory

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 4b6cdb1304662f72db58fdba3d17f373b4ad2b3e..3262ceb2d303a1918a952410b5df4a5d4a341888 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -4299,7 +4299,9 @@ FunctionLiteral* Parser::ParseFunctionLiteral(
   // Parse function.
   {
     FunctionState function_state(&function_state_, &scope_state_, scope, kind);
+#ifdef DEBUG
     this->scope()->SetScopeName(function_name);
+#endif
     ExpressionClassifier formals_classifier(this, &duplicate_finder);
 
     eager_compile_hint = function_state_->this_function_is_parenthesized()
@@ -5011,7 +5013,9 @@ Expression* Parser::ParseClassLiteral(ExpressionClassifier* classifier,
 
   BlockState block_state(&scope_state_);
   RaiseLanguageMode(STRICT);
+#ifdef DEBUG
   scope()->SetScopeName(name);
+#endif
 
   VariableProxy* proxy = nullptr;
   if (name != nullptr) {