WIP: Parser: delay string internalization.

src/rewriter.cc

Index: src/rewriter.cc
diff --git a/src/rewriter.cc b/src/rewriter.cc
index 27f03dc7a483e935e09b89bee9a8fc93a3693f3d..e420bcdcb5b7e59d05a4a273b1ff5dc64f26dd16 100644
--- a/src/rewriter.cc
+++ b/src/rewriter.cc
@@ -234,8 +234,9 @@ bool Rewriter::Rewrite(CompilationInfo* info) {
 
   ZoneList<Statement*>* body = function->body();
   if (!body->is_empty()) {
-    Variable* result = scope->NewTemporary(
-        info->isolate()->factory()->dot_result_string());
+    Variable* result =
+        scope->NewTemporary(info->symbol_table()->dot_result_string());
+    ASSERT(!result->name().is_null());  // Gets internalized right away.
     Processor processor(result, info->zone());
     processor.Process(body);
     if (processor.HasStackOverflow()) return false;
@@ -250,7 +251,7 @@ bool Rewriter::Rewrite(CompilationInfo* info) {
       // coincides with the end of the with scope which is the position of '1'.
       int pos = function->end_position();
       VariableProxy* result_proxy = processor.factory()->NewVariableProxy(
-          result->name(), false, result->interface(), pos);
+          result->raw_name(), false, result->interface(), pos);
       result_proxy->BindTo(result);
       Statement* result_statement =
           processor.factory()->NewReturnStatement(result_proxy, pos);