llvm-project

b12d68e0 - [libc++] Implements the new FTM header test generator. (#134542)

[libc++] Implements the new FTM header test generator. (#134542) This generator has almost identical output to the existing script. Notable differences are - conditionally include headers that are not implemented yet - removes the synopsis - uses 2 spaces indent in `# if` There are a few more test macros added that triggered bugs in existing FTM.