X87: StubCallInterfaceDescriptor takes a context register.

src/x87/lithium-x87.cc

Index: src/x87/lithium-x87.cc
diff --git a/src/x87/lithium-x87.cc b/src/x87/lithium-x87.cc
index 748e48fcc3ceeadea4a8aa9c6f1c8d63b4cd587e..533d36b9696ecf60b7e6093fe2dea1b4c18084db 100644
--- a/src/x87/lithium-x87.cc
+++ b/src/x87/lithium-x87.cc
@@ -1120,8 +1120,7 @@ LInstruction* LChunkBuilder::DoCallJSFunction(
 
 LInstruction* LChunkBuilder::DoCallWithDescriptor(
     HCallWithDescriptor* instr) {
-  const CallInterfaceDescriptor* descriptor = instr->descriptor();
-
+  const InterfaceDescriptor* descriptor = instr->descriptor();
   LOperand* target = UseRegisterOrConstantAtStart(instr->target());
   ZoneList<LOperand*> ops(instr->OperandCount(), zone());
   ops.Add(target, zone());
@@ -2458,7 +2457,7 @@ LInstruction* LChunkBuilder::DoParameter(HParameter* instr) {
     CodeStubInterfaceDescriptor* descriptor =
         info()->code_stub()->GetInterfaceDescriptor();
     int index = static_cast<int>(instr->index());
-    Register reg = descriptor->GetParameterRegister(index);
+    Register reg = descriptor->GetEnvironmentParameterRegister(index);
     return DefineFixed(result, reg);
   }
 }