Introduce unsigned representation types

src/typing.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/typing.h"
 
 #include "src/frames.h"
 #include "src/frames-inl.h"
 #include "src/ostreams.h"
 #include "src/parser.h"  // for CompileTimeValue; TODO(rossberg): should move
@@ skipping 376 matching lines @@
 }
 
 
 void AstTyper::VisitLiteral(Literal* expr) {
   Type* type = Type::Constant(expr->value(), zone());
   NarrowType(expr, Bounds(type));
 }
 
 
 void AstTyper::VisitRegExpLiteral(RegExpLiteral* expr) {
-  NarrowType(expr, Bounds(Type::RegExp(zone())));
+  // TODO(rossberg): Reintroduce RegExp type.
+  NarrowType(expr, Bounds(Type::Object(zone())));
 }
 
 
 void AstTyper::VisitObjectLiteral(ObjectLiteral* expr) {
   ZoneList<ObjectLiteral::Property*>* properties = expr->properties();
   for (int i = 0; i < properties->length(); ++i) {
     ObjectLiteral::Property* prop = properties->at(i);
 
     // Collect type feedback.
     if ((prop->kind() == ObjectLiteral::Property::MATERIALIZED_LITERAL &&
@@ skipping 397 matching lines @@
 void AstTyper::VisitModuleUrl(ModuleUrl* module) {
 }
 
 
 void AstTyper::VisitModuleStatement(ModuleStatement* stmt) {
   RECURSE(Visit(stmt->body()));
 }
 
 
 } }  // namespace v8::internal