oleaut32: TKIND_COCLASS parameters to Invoke'd functions should be converted…

dlls/oleaut32/tests/tmarshal.c

@@ -433,7 +433,7 @@ HRESULT WINAPI Widget_CloneCoclass(
     IWidget *iface,
     ApplicationObject2 **ppVal)
 {
-    trace("CloneDispatch()\n");
+    trace("CloneCoclass()\n");
     return S_OK;
 }
 
@@ -902,6 +902,23 @@ static void test_typelibmarshal(void)
     ok(V_I2(&varresult) == 1234, "V_I2(&varresult) was %d instead of 1234\n", V_I2(&varresult));
     VariantClear(&varresult);
 
+    /* call CloneCoclass */
+    dispparams.cNamedArgs = 0;
+    dispparams.cArgs = 0;
+    dispparams.rgdispidNamedArgs = NULL;
+    dispparams.rgvarg = NULL;
+    VariantInit(&varresult);
+    hr = IDispatch_Invoke(pDispatch, DISPID_TM_CLONECOCLASS, &IID_NULL, LOCALE_NEUTRAL, DISPATCH_PROPERTYGET, &dispparams, &varresult, &excepinfo, NULL);
+    ok_ole_success(hr, IDispatch_Invoke);
+
+    ok(excepinfo.wCode == 0x0 && excepinfo.scode == S_OK,
+       "EXCEPINFO differs from expected: wCode = 0x%x, scode = 0x%08x\n",
+       excepinfo.wCode, excepinfo.scode);
+
+    ok(V_VT(&varresult) == VT_DISPATCH, "V_VT(&varresult) was %d instead of VT_DISPATCH\n", V_VT(&varresult));
+    ok(!V_DISPATCH(&varresult), "V_DISPATCH(&varresult) should be NULL instead of %p\n", V_DISPATCH(&varresult));
+    VariantClear(&varresult);
+
     /* call Value with a VT_VARIANT|VT_BYREF type */
     V_VT(&vararg[0]) = VT_VARIANT|VT_BYREF;
     V_VARIANTREF(&vararg[0]) = &vararg[1];

dlls/oleaut32/typelib.c

@@ -5213,7 +5213,7 @@ static HRESULT userdefined_to_variantvt(ITypeInfo *tinfo, const TYPEDESC *tdesc,
         break;
 
     case TKIND_COCLASS:
-        *vt |= VT_UNKNOWN;
+        *vt |= VT_DISPATCH;
         break;
 
     case TKIND_RECORD: