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

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 256268b4ad917e3dcf2bb82dd68ee96e6c03b3e7..978fafd0d884ee681396594ef51b252ec0e9c9cf 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -2429,7 +2429,7 @@ 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);