Parsing: Make Parser not know about Isolate during background parsing.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index f2fffa2182a1be05d6dc4313c0c51f82c5bcff2a..ec9978e74b704fbda20298287551d6de06d8413e 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -1727,8 +1727,8 @@ Local<Script> ScriptCompiler::Compile(Isolate* v8_isolate,
 
     // Do the parsing tasks which need to be done on the main thread. This will
     // also handle parse errors.
-    source->parser->Internalize();
-    source->parser->HandleSourceURLComments();
+    source->parser->Internalize(source->info.get());
+    source->parser->HandleSourceURLComments(source->info.get());
 
     i::Handle<i::SharedFunctionInfo> result =
         i::Handle<i::SharedFunctionInfo>::null();