Refactor ExternalReference::isolate_address() to not rely on Isolate::Current().

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 66bd6b55d3dad229569a35892ebc6d9153b3a3bd..1f69dbe0f5d778a848e09414ffcdb8435c4b1f65 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -1295,7 +1295,7 @@ void StoreBufferOverflowStub::Generate(MacroAssembler* masm) {
 
   AllowExternalCallThatCantCauseGC scope(masm);
   __ PrepareCallCFunction(argument_count, fp_argument_count, scratch);
-  __ mov(r0, Operand(ExternalReference::isolate_address()));
+  __ mov(r0, Operand(ExternalReference::isolate_address(masm->isolate())));
   __ CallCFunction(
       ExternalReference::store_buffer_overflow_function(masm->isolate()),
       argument_count);
@@ -3102,7 +3102,7 @@ void CEntryStub::GenerateCore(MacroAssembler* masm,
   }
 #endif
 
-  __ mov(r2, Operand(ExternalReference::isolate_address()));
+  __ mov(r2, Operand(ExternalReference::isolate_address(isolate)));
 
   // To let the GC traverse the return address of the exit frames, we need to
   // know where the return address is. The CEntryStub is unmovable, so
@@ -4319,7 +4319,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
   // Arguments are before that on the stack or in registers.
 
   // Argument 9 (sp[20]): Pass current isolate address.
-  __ mov(r0, Operand(ExternalReference::isolate_address()));
+  __ mov(r0, Operand(ExternalReference::isolate_address(isolate)));
   __ str(r0, MemOperand(sp, 5 * kPointerSize));
 
   // Argument 8 (sp[16]): Indicate that this is a direct call from JavaScript.
@@ -6916,7 +6916,7 @@ void RecordWriteStub::InformIncrementalMarker(MacroAssembler* masm, Mode mode) {
   __ Move(address, regs_.address());
   __ Move(r0, regs_.object());
   __ Move(r1, address);
-  __ mov(r2, Operand(ExternalReference::isolate_address()));
+  __ mov(r2, Operand(ExternalReference::isolate_address(masm->isolate())));
 
   AllowExternalCallThatCantCauseGC scope(masm);
   if (mode == INCREMENTAL_COMPACTION) {