CodeStubs contain their corresponding Isolate* now. (part 2)

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index ffd8d861d2e605ae0bbce22d912812f5aff1fcdf..cfd49caae91da8262189431c290b47f2cc4e21b0 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -2537,7 +2537,7 @@ LInstruction* LChunkBuilder::DoParameter(HParameter* instr) {
   } else {
     ASSERT(info()->IsStub());
     CodeStubInterfaceDescriptor* descriptor =
-        info()->code_stub()->GetInterfaceDescriptor(info()->isolate());
+        info()->code_stub()->GetInterfaceDescriptor();
     int index = static_cast<int>(instr->index());
     Register reg = descriptor->GetParameterRegister(index);
     return DefineFixed(result, reg);