Fix the full compiler on ARM to always generate the same code

src/arm/full-codegen-arm.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 655 matching lines @@
   } else {
     if (false_label_ != fall_through_) __ b(false_label_);
   }
 }
 
 
 void FullCodeGenerator::DoTest(Expression* condition,
                                Label* if_true,
                                Label* if_false,
                                Label* fall_through) {
-  if (CpuFeatures::IsSupported(VFP2)) {
-    ToBooleanStub stub(result_register());
-    __ CallStub(&stub);
-    __ tst(result_register(), result_register());
-  } else {
-    // Call the runtime to find the boolean value of the source and then
-    // translate it into control flow to the pair of labels.
-    __ push(result_register());
-    __ CallRuntime(Runtime::kToBool, 1);
-    __ LoadRoot(ip, Heap::kFalseValueRootIndex);
-    __ cmp(r0, ip);
-  }
+  ToBooleanStub stub(result_register());
+  __ CallStub(&stub);
+  __ tst(result_register(), result_register());
   Split(ne, if_true, if_false, fall_through);
 }
 
 
 void FullCodeGenerator::Split(Condition cond,
                               Label* if_true,
                               Label* if_false,
                               Label* fall_through) {
   if (if_false == fall_through) {
     __ b(cond, if_true);
@@ skipping 3875 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM