oleaut32: Fix parse error when converting non-ascii string to VT_DATE.

dlls/oleaut32/tests/vartype.c

@@ -3410,6 +3410,8 @@ static void test_VarDateFromStr(void)
   SYSTEMTIME st;
   OLECHAR buff[128];
   size_t i;
+  OLECHAR with_ideographic_spaceW[] = { '6','/','3','0','/','2','0','1','1',0x3000,
+                                        '1',':','2','0',':','3','4',0 };
 
   lcid = MAKELCID(MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),SORT_DEFAULT);
 
@@ -3533,6 +3535,11 @@ static void test_VarDateFromStr(void)
   DFS("6/30/2011 01:20:34 PM");       EXPECT_DBL(40724.55594907407);
   /* Native fails "1999 January 3, 9AM". I consider that a bug in native */
 
+  /* test a data with ideographic space */
+  out = 0.0;
+  hres = pVarDateFromStr(with_ideographic_spaceW, lcid, LOCALE_NOUSEROVERRIDE, &out);
+  EXPECT_DBL(40724.05594907407);
+
   /* test a non-english data string */
   DFS("02.01.1970"); EXPECT_MISMATCH;
   DFS("02.01.1970 00:00:00"); EXPECT_MISMATCH;

dlls/oleaut32/vartype.c

@@ -7676,7 +7676,7 @@ HRESULT WINAPI VarDateFromStr(OLECHAR* strIn, LCID lcid, ULONG dwFlags, DATE* pd
       dp.dwCount++;
       strIn--;
     }
-    else if (isalpha(*strIn))
+    else if (isalphaW(*strIn))
     {
       BOOL bFound = FALSE;