Introduce x87 port

src/x87/simulator-x87.h

 // Copyright 2012 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.
 
-#ifndef V8_IA32_SIMULATOR_IA32_H_
-#define V8_IA32_SIMULATOR_IA32_H_
+#ifndef V8_X87_SIMULATOR_X87_H_
+#define V8_X87_SIMULATOR_X87_H_
 
 #include "allocation.h"
 
 namespace v8 {
 namespace internal {
 
 // Since there is no simulator for the ia32 architecture the only thing we can
 // do is to call the entry directly.
 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
   (entry(p0, p1, p2, p3, p4))
@@ skipping 21 matching lines @@
 
   static inline uintptr_t RegisterCTryCatch(uintptr_t try_catch_address) {
     return try_catch_address;
   }
 
   static inline void UnregisterCTryCatch() { }
 };
 
 } }  // namespace v8::internal
 
-#endif  // V8_IA32_SIMULATOR_IA32_H_
+#endif  // V8_X87_SIMULATOR_X87_H_