Fix ARM simulator build on Windows.

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 492 matching lines @@
 class CpuFeatures : public AllStatic {
  public:
   // Detect features of the target CPU. Set safe defaults if the serializer
   // is enabled (snapshots must be portable).
   static void Probe();
 
   // Check whether a feature is supported by the target CPU.
   static bool IsSupported(CpuFeature f) {
     ASSERT(initialized_);
     if (f == VFP3 && !FLAG_enable_vfp3) return false;
-    return (supported_ & (1u << f)) != 0;
+    return (supported_ & (static_cast<uint64_t>(1u) << f)) != 0;
   }
 
 #ifdef DEBUG
   // Check whether a feature is currently enabled.
   static bool IsEnabled(CpuFeature f) {
     ASSERT(initialized_);
     Isolate* isolate = Isolate::UncheckedCurrent();
     if (isolate == NULL) {
       // When no isolate is available, work as if we're running in
       // release mode.
@@ skipping 36 matching lines @@
    public:
     explicit Scope(CpuFeature f) {}
 #endif
   };
 
   class TryForceFeatureScope BASE_EMBEDDED {
    public:
     explicit TryForceFeatureScope(CpuFeature f)
         : old_supported_(CpuFeatures::supported_) {
       if (CanForce()) {
-        CpuFeatures::supported_ |= (1u << f);
+        CpuFeatures::supported_ |= (static_cast<uint64_t>(1u) << f);
       }
     }
 
     ~TryForceFeatureScope() {
       if (CanForce()) {
         CpuFeatures::supported_ = old_supported_;
       }
     }
 
    private:
     static bool CanForce() {
       // It's only safe to temporarily force support of CPU features
       // when there's only a single isolate, which is guaranteed when
       // the serializer is enabled.
       return Serializer::enabled();
     }
 
-    const unsigned old_supported_;
+    const uint64_t old_supported_;
   };
 
  private:
 #ifdef DEBUG
   static bool initialized_;
 #endif
-  static unsigned supported_;
-  static unsigned found_by_runtime_probing_;
+  static uint64_t supported_;
+  static uint64_t found_by_runtime_probing_;
 
   DISALLOW_COPY_AND_ASSIGN(CpuFeatures);
 };
 
 
 extern const Instr kMovLrPc;
 extern const Instr kLdrPCMask;
 extern const Instr kLdrPCPattern;
 extern const Instr kBlxRegMask;
 extern const Instr kBlxRegPattern;
@@ skipping 828 matching lines @@
  public:
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_ASSEMBLER_ARM_H_