remove most uses of Isolate::Current in arch specific files

src/arm/code-stubs-arm.h

 // 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 50 matching lines @@
 };
 
 
 class StoreBufferOverflowStub: public PlatformCodeStub {
  public:
   explicit StoreBufferOverflowStub(SaveFPRegsMode save_fp)
       : save_doubles_(save_fp) {}
 
   void Generate(MacroAssembler* masm);
 
-  virtual bool IsPregenerated() { return true; }
+  virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE { return true; }
   static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
   virtual bool SometimesSetsUpAFrame() { return false; }
 
  private:
   SaveFPRegsMode save_doubles_;
 
   Major MajorKey() { return StoreBufferOverflow; }
   int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
 };
 
@@ skipping 143 matching lines @@
 // so you don't have to set up the frame.
 class WriteInt32ToHeapNumberStub : public PlatformCodeStub {
  public:
   WriteInt32ToHeapNumberStub(Register the_int,
                              Register the_heap_number,
                              Register scratch)
       : the_int_(the_int),
         the_heap_number_(the_heap_number),
         scratch_(scratch) { }
 
-  bool IsPregenerated();
+  virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE;
   static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
 
  private:
   Register the_int_;
   Register the_heap_number_;
   Register scratch_;
 
   // Minor key encoding in 16 bits.
   class IntRegisterBits: public BitField<int, 0, 4> {};
   class HeapNumberRegisterBits: public BitField<int, 4, 4> {};
@@ skipping 52 matching lines @@
               address,  // An input reg.
               value) {  // One scratch reg.
   }
 
   enum Mode {
     STORE_BUFFER_ONLY,
     INCREMENTAL,
     INCREMENTAL_COMPACTION
   };
 
-  virtual bool IsPregenerated();
+  virtual bool IsPregenerated(Isolate* isolate) V8_OVERRIDE;
   static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
   virtual bool SometimesSetsUpAFrame() { return false; }
 
   static void PatchBranchIntoNop(MacroAssembler* masm, int pos) {
     masm->instr_at_put(pos, (masm->instr_at(pos) & ~B27) | (B24 | B20));
     ASSERT(Assembler::IsTstImmediate(masm->instr_at(pos)));
   }
 
   static void PatchNopIntoBranch(MacroAssembler* masm, int pos) {
     masm->instr_at_put(pos, (masm->instr_at(pos) & ~(B24 | B20)) | B27);
@@ skipping 211 matching lines @@
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_CODE_STUBS_ARM_H_