X87: Change num_double_registers() to num_allocatable_double_registers() for TestStackSlot.

test/cctest/compiler/test-run-native-calls.cc

 // Copyright 2015 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/assembler.h"
 #include "src/codegen.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/raw-machine-assembler.h"
 #include "src/machine-type.h"
 #include "src/register-configuration.h"
@@ skipping 1145 matching lines @@
 TEST(MixedParams_1) { MixedParamTest(1); }
 TEST(MixedParams_2) { MixedParamTest(2); }
 TEST(MixedParams_3) { MixedParamTest(3); }
 
 template <typename T>
 void TestStackSlot(MachineType slot_type, T expected) {
   // Test: Generate with a function f which reserves a stack slot, call an inner
   // function g from f which writes into the stack slot of f.
 
   if (RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
-          ->num_double_registers() < 2)
+          ->num_allocatable_double_registers() < 2)
     return;
 
   Isolate* isolate = CcTest::InitIsolateOnce();
 
   // Lots of code to generate the build descriptor for the inner function.
   int parray_gp[] = {
       RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
           ->GetAllocatableGeneralCode(0),
       RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN)
           ->GetAllocatableGeneralCode(1)};
@@ skipping 69 matching lines @@
   TestStackSlot(MachineType::Float32(), magic);
 }
 
 TEST(RunStackSlotFloat64) {
   double magic = 3456.375;
   TestStackSlot(MachineType::Float64(), magic);
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8