[Interpreter] Unary operators - typeof, void, and logical not.

src/runtime/runtime-interpreter.cc

Index: src/runtime/runtime-interpreter.cc
diff --git a/src/runtime/runtime-interpreter.cc b/src/runtime/runtime-interpreter.cc
index e0a171267fa77b15d6958f618c84d4dc15110b72..7f4b535700bf6f8223f38343c9bda49f39c63ddd 100644
--- a/src/runtime/runtime-interpreter.cc
+++ b/src/runtime/runtime-interpreter.cc
@@ -121,5 +121,21 @@ RUNTIME_FUNCTION(Runtime_InterpreterToBoolean) {
 }
 
 
+RUNTIME_FUNCTION(Runtime_InterpreterLogicalNot) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_CHECKED(Object, x, 0);
+  return isolate->heap()->ToBoolean(!x->BooleanValue());
+}
+
+
+RUNTIME_FUNCTION(Runtime_InterpreterTypeOf) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  CONVERT_ARG_CHECKED(Object, x, 0);
+  return Object::cast(*Object::TypeOf(isolate, handle(x, isolate)));
+}
+
+
 }  // namespace internal
 }  // namespace v8