ole2disp.dll: add a stub for VARIANTCHANGETYPE

[Austin English]

For https://bugs.winehq.org/show_bug.cgi?id=14449

-- 
-Austin
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diff --git a/dlls/ole2disp.dll16/ole2disp.c b/dlls/ole2disp.dll16/ole2disp.c
index 957d1bc..61a4043 100644
--- a/dlls/ole2disp.dll16/ole2disp.c
+++ b/dlls/ole2disp.dll16/ole2disp.c
@@ -214,6 +214,16 @@ int WINAPI SysStringLen16(BSTR16 str)
 }
 
 /******************************************************************************
+ * VariantChangeType [OLE2DISP.12]
+ */
+HRESULT WINAPI VariantChangeType16(VARIANTARG *vargDest, VARIANTARG *varSrc, unsigned short flags, VARTYPE vt)
+{
+    FIXME("stub: (%p, %p, %d, %d)\n", vargDest, varSrc, flags, vt);
+    return E_NOTIMPL;
+}
+
+
+/******************************************************************************
  * CreateDispTypeInfo [OLE2DISP.31]
  */
 HRESULT WINAPI CreateDispTypeInfo16(
diff --git a/dlls/ole2disp.dll16/ole2disp.dll16.spec b/dlls/ole2disp.dll16/ole2disp.dll16.spec
index 0bc4bae..c027d12 100644
--- a/dlls/ole2disp.dll16/ole2disp.dll16.spec
+++ b/dlls/ole2disp.dll16/ole2disp.dll16.spec
@@ -9,7 +9,7 @@
 9 stub VARIANTCLEAR
 10 stub VARIANTCOPY
 11 stub VARIANTCOPYIND
-12 stub VARIANTCHANGETYPE
+12 pascal VARIANTCHANGETYPE(ptr ptr long long) VariantChangeType16
 13 stub VARIANTTIMETODOSDATETIME
 14 stub DOSDATETIMETOVARIANTTIME
 15 stub SAFEARRAYCREATE