oledb32: Implement DataConvert DBTYPE_I2 -> VARIANT.

dlls/oledb32/convert.c

@@ -878,6 +878,11 @@ static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
             V_BOOL(v) = *(VARIANT_BOOL*)src;
             hr = S_OK;
             break;
+        case DBTYPE_I2:
+            V_VT(v) = VT_I2;
+            V_I2(v) = *(signed short*)src;
+            hr = S_OK;
+            break;
         case DBTYPE_I4:
             V_VT(v) = VT_I4;
             V_I4(v) = *(signed int*)src;

dlls/oledb32/tests/convert.c

@@ -2666,6 +2666,7 @@ static void test_converttovar(void)
     CY cy, cy2;
     DATE date;
     INT i4;
+    signed short i2;
     LARGE_INTEGER i8;
     VARIANT_BOOL boolean = VARIANT_TRUE;
     FLOAT fvalue = 543.21f;
@@ -2746,6 +2747,17 @@ static void test_converttovar(void)
     V_VT(&dst) = VT_EMPTY;
     dst_len = 0;
     dst_status = DBSTATUS_S_DEFAULT;
+    i2 = 123;
+    hr = IDataConvert_DataConvert(convert, DBTYPE_I2, DBTYPE_VARIANT, sizeof(i2), &dst_len, &i2, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(dst_status == DBSTATUS_S_OK, "got %08x\n", dst_status);
+    ok(dst_len == sizeof(dst), "got %ld\n", dst_len);
+    ok(V_VT(&dst) == VT_I2, "got %d\n", V_VT(&dst));
+    ok(V_I2(&dst) == 123, "got %d\n", V_I2(&dst));
+
+    V_VT(&dst) = VT_EMPTY;
+    dst_len = 0;
+    dst_status = DBSTATUS_S_DEFAULT;
     date = 123.123;
     hr = IDataConvert_DataConvert(convert, DBTYPE_DATE, DBTYPE_VARIANT, sizeof(date), &dst_len, &date, &dst, sizeof(dst), 0, &dst_status, 0, 0, 0);
     ok(hr == S_OK, "got %08x\n", hr);