[llvm-rc] Don't interpret integer literals as octal numbers in rc.exe mode (#166915)

It turns out that rc.exe doesn't interpret integer literals as octal
numbers - but GNU windres does. Previously, llvm-rc did interpret them
as octal.

Fix the issue by stripping away the leading zeros during tokenization.
The alternative (which would be somewhat cleaner, as visible in
tokenizer.test) would be to retain them in the RCToken object, but strip
them out before calling
StringRef::getAsInteger. Alternatively to handle the radix detection
locally in llvm-rc code and not rely on getAsInteger to autodetect it.
Both of those solutions require propagating the IsWindres flag so that
it is available within RCToken, or at least when calling
RCToken::intValue().

Fixes: https://github.com/llvm/llvm-project/issues/144723

0 files changed, 0 insertions, 0 deletions