Remove remnants of INTERNAL variable handling from Scope

src/scopes.h

Index: src/scopes.h
diff --git a/src/scopes.h b/src/scopes.h
index 73277252e3ed1bb451f8507603256358ab03ac29..2e09e5e24c905d3e7e61372a6a38dd2628846d3e 100644
--- a/src/scopes.h
+++ b/src/scopes.h
@@ -553,8 +553,6 @@ class Scope: public ZoneObject {
   // variables may be implicitly 'declared' by being used (possibly in
   // an inner scope) with no intervening with statements or eval calls.
   VariableMap variables_;
-  // Compiler-allocated (user-invisible) internals.
-  ZoneList<Variable*> internals_;
   // Compiler-allocated (user-invisible) temporaries.
   ZoneList<Variable*> temps_;
   // Parameter list in source order.
@@ -629,7 +627,7 @@ class Scope: public ZoneObject {
   // The number of modules (including nested ones).
   int num_modules_;
 
-  // For module scopes, the host scope's internal variable binding this module.
+  // For module scopes, the host scope's temporary variable binding this module.
   Variable* module_var_;
 
   // Rest parameter