kernel32: add more tests for FormatMessage{A,W}

[Louis Lenders]

These tests show the problem in http://bugs.winehq.org/show_bug.cgi?id=19352

In http://msdn.microsoft.com/en-us/library/ms679351(VS.85).aspx
MSDN states that "If the function cannot find a message for that LANGID, it sets the error to ERROR_RESOURCE_LANG_NOT_FOUND.

The attached tests show that this is true for "non-special" language-id's, but not for the special ones:
(LANG_NEUTRAL, SUBLANG_NEUTRAL), (LANG_NEUTRAL, SUBLANG_DEFAULT),(LANG_NEUTRAL, SUBLANG_SYS_DEFAULT), and (DWORD)MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US)

In the latter case the error is set to ERROR_MR_MID_NOT_FOUND

fix will follow


      
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