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

src/ia32/deoptimizer-ia32.cc

Index: src/ia32/deoptimizer-ia32.cc
diff --git a/src/ia32/deoptimizer-ia32.cc b/src/ia32/deoptimizer-ia32.cc
index f0436225c51b033150300df9a432717ed7b01ac5..bae8d8098bc08ce6ebbb6788000c94581db4615c 100644
--- a/src/ia32/deoptimizer-ia32.cc
+++ b/src/ia32/deoptimizer-ia32.cc
@@ -762,7 +762,7 @@ void Deoptimizer::EntryGenerator::Generate() {
   __ mov(Operand(esp, 3 * kPointerSize), ecx);  // Code address or 0.
   __ mov(Operand(esp, 4 * kPointerSize), edx);  // Fp-to-sp delta.
   __ mov(Operand(esp, 5 * kPointerSize),
-         Immediate(ExternalReference::isolate_address()));
+         Immediate(ExternalReference::isolate_address(isolate)));
   {
     AllowExternalCallThatCantCauseGC scope(masm());
     __ CallCFunction(ExternalReference::new_deoptimizer_function(isolate), 6);