C, C++: fundamental type parsing

[jakobandersen]

Feature or Bugfix

• Bugfix

Purpose

Fixes #9917 and breathe-doc/breathe#771.

Note primarily for @tk0miya: I put this in 4.3.x so it could go out immediately, and it indeed causes a crash in Breathe (because it messes with C++ internals) if users have the "wrong" order in non-type template parameters.

[tk0miya]

Okay, I'll release a new package after this PR merged.

[jakobandersen]

@marxin, do you by chance have time to double check with the GCC docs that this didn't break anything? or do you have instructions for how I compile them in the current state?

[jakobandersen]

Okay, I'll release a new package after this PR merged.

@tk0miya, please go ahead with a release as it fits in your schedule. I'll just rebase this if it doesn't make it in time.

[marxin]

@marxin, do you by chance have time to double check with the GCC docs that this didn't break anything? or do you have instructions for how I compile them in the current state?

Please try that yourself:

git clone https://github.com/marxin/texi2rst-generated
cd texi2rst-generated/sphinx
make html

[jakobandersen]

Please try that yourself:

Thanks! No breakages found. Merging.