Let NaN flow as double into HBranch

src/hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 785 matching lines @@
 void HGraphBuilder::IfBuilder::Then() {
   ASSERT(!captured_);
   ASSERT(!finished_);
   did_then_ = true;
   if (needs_compare_) {
     // Handle if's without any expressions, they jump directly to the "else"
     // branch. However, we must pretend that the "then" branch is reachable,
     // so that the graph builder visits it and sees any live range extending
     // constructs within it.
     HConstant* constant_false = builder_->graph()->GetConstantFalse();
-    ToBooleanStub::Types boolean_type = ToBooleanStub::no_types();
+    ToBooleanStub::Types boolean_type = ToBooleanStub::Types();
     boolean_type.Add(ToBooleanStub::BOOLEAN);
     HBranch* branch =
         new(zone()) HBranch(constant_false, first_true_block_,
                             first_false_block_, boolean_type);
     builder_->current_block()->Finish(branch);
   }
   builder_->set_current_block(first_true_block_);
 }
 
 
@@ skipping 10822 matching lines @@
     }
   }
 
 #ifdef DEBUG
   if (graph_ != NULL) graph_->Verify(false);  // No full verify.
   if (allocator_ != NULL) allocator_->Verify();
 #endif
 }
 
 } }  // namespace v8::internal