Fraction class prototype and test (not to be committed).

runtime/vm/flow_graph_compiler.cc

 // Copyright (c) 2013, 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/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
@@ skipping 1263 matching lines @@
 void FlowGraphCompiler::GenerateNumberTypeCheck(Register kClassIdReg,
                                                 const AbstractType& type,
                                                 Label* is_instance_lbl,
                                                 Label* is_not_instance_lbl) {
   assembler()->Comment("NumberTypeCheck");
   GrowableArray<intptr_t> args;
   if (type.IsNumberType()) {
     args.Add(kDoubleCid);
     args.Add(kMintCid);
     args.Add(kBigintCid);
+    args.Add(kFractionCid);
   } else if (type.IsIntType()) {
     args.Add(kMintCid);
     args.Add(kBigintCid);
   } else if (type.IsDoubleType()) {
     args.Add(kDoubleCid);
   }
   CheckClassIds(kClassIdReg, args, is_instance_lbl, is_not_instance_lbl);
 }
 
 
@@ skipping 701 matching lines @@
 
 
 void FlowGraphCompiler::FrameStateClear() {
   ASSERT(!is_optimizing());
   frame_state_.TruncateTo(0);
 }
 #endif  // defined(DEBUG) && !defined(TARGET_ARCH_DBC)
 
 
 }  // namespace dart