[Interpreter] Add support for JS calls.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 22490f7fe1ad682b7b67280642d0758d15fd5497..57c099716dc83a3084ef8312783bbfb328513b58 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -154,6 +154,7 @@ class CommonOperatorBuilder final : public ZoneObject {
                              const FrameStateFunctionInfo* function_info);
   const Operator* Call(const CallDescriptor* descriptor);
   const Operator* TailCall(const CallDescriptor* descriptor);
+  const Operator* CallVarArgs(const CallDescriptor* descriptor);
   const Operator* Projection(size_t index);
 
   // Constructs a new merge or phi operator with the same opcode as {op}, but