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

src/mips/code-stubs-mips.cc

Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index 80c972c374e7c0b7ff73f264fe19c8490e283748..cc1cf4e9fd9f5c9dc87e825596fb882d8a125fb4 100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -1585,7 +1585,7 @@ void StoreBufferOverflowStub::Generate(MacroAssembler* masm) {
 
   AllowExternalCallThatCantCauseGC scope(masm);
   __ PrepareCallCFunction(argument_count, fp_argument_count, scratch);
-  __ li(a0, Operand(ExternalReference::isolate_address()));
+  __ li(a0, Operand(ExternalReference::isolate_address(masm->isolate())));
   __ CallCFunction(
       ExternalReference::store_buffer_overflow_function(masm->isolate()),
       argument_count);
@@ -3410,7 +3410,7 @@ void CEntryStub::GenerateCore(MacroAssembler* masm,
 
   __ AssertStackIsAligned();
 
-  __ li(a2, Operand(ExternalReference::isolate_address()));
+  __ li(a2, 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
@@ -4689,7 +4689,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
 
   // Argument 9: Pass current isolate address.
   // CFunctionArgumentOperand handles MIPS stack argument slots.
-  __ li(a0, Operand(ExternalReference::isolate_address()));
+  __ li(a0, Operand(ExternalReference::isolate_address(isolate)));
   __ sw(a0, MemOperand(sp, 5 * kPointerSize));
 
   // Argument 8: Indicate that this is a direct call from JavaScript.
@@ -7303,7 +7303,7 @@ void RecordWriteStub::InformIncrementalMarker(MacroAssembler* masm, Mode mode) {
   __ Move(address, regs_.address());
   __ Move(a0, regs_.object());
   __ Move(a1, address);
-  __ li(a2, Operand(ExternalReference::isolate_address()));
+  __ li(a2, Operand(ExternalReference::isolate_address(masm->isolate())));
 
   AllowExternalCallThatCantCauseGC scope(masm);
   if (mode == INCREMENTAL_COMPACTION) {