Fix for running with --throw_on_javascript_int_overflow: recognize pattern (a << b) & mask and test…

runtime/vm/ast.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/ast.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object_store.h"
 #include "vm/resolver.h"
@@ skipping 226 matching lines @@
       return false;
   }
 }
 
 
 const char* BinaryOpNode::Name() const {
   return Token::Str(kind_);
 }
 
 
+const char* BinaryOpWithMask32Node::Name() const {
+  return Token::Str(kind());
+}
+
+
 bool BinaryOpNode::IsPotentiallyConst() const {
   switch (kind_) {
     case Token::kADD:
     case Token::kSUB:
     case Token::kMUL:
     case Token::kDIV:
     case Token::kMOD:
     case Token::kTRUNCDIV:
     case Token::kBIT_OR:
     case Token::kBIT_XOR:
@@ skipping 293 matching lines @@
   if (result.IsError() || result.IsNull()) {
     // TODO(turnidge): We could get better error messages by returning
     // the Error object directly to the parser.  This will involve
     // replumbing all of the EvalConstExpr methods.
     return NULL;
   }
   return &Instance::ZoneHandle(Instance::Cast(result).raw());
 }
 
 }  // namespace dart