vbscript/tests: Use a defined name for error code.
ntdll: Use BOOL type where appropriate.
wordpad: Use BOOL type where appropriate.
winhlp32: Use BOOL type where appropriate.
uninstaller: Remove unused global variable.

Not used since 393fd51f79784149bfe84613079523dd715a1bc5
winmm/tests: Use the explicit CreateEventW() and don't bother testing it.
winmm/tests: Use a better type for the mixer object.
winmm/tests: Compile with -D__WINESRC__.
wined3d: Introduce a function for safely releasing a DC.
wined3d: Mark the context valid if making it current on the "backup" window worked.
d3d9/tests: Get rid of the "data2" vertex data array in pretransformed_varying_test().
ddrawex: Get rid of the IClassFactoryImpl typedef.
ddrawex: Get rid of the IDirectDrawFactoryImpl typedef.
urlmon/tests: Preparation for -D__WINESRC__.
usp10: Rewrite resolveExplicit for Unicode 6.3.
usp10: Rewrite resolveWeak for Unicode 6.3.
usp10: Rewrite resolveNeutral and resolveImplicit for Unicode 6.3.
usp10: Implement resolveResolved (L1) for Unicode 6.3.
msvcp: Fixed char_traits<char>::to_int_type.
msvcp: Added missing casts to unsigned char in streambuf functions.