'HandleEndifDirective' asserts that 'WasSkipping' is false, so switch to using 'FoundNonSkip' as the hint for 'SingleFileParseMode' to keep going with parsing.
llvm-svn: 305940
This is useful for being able to parse the preprocessor directive blocks even if the header, that defined the macro that is checked, hasn't been included.
Differential Revision: https://reviews.llvm.org/D34263
llvm-svn: 305797