tree 2c089a6e665f52dc57357f364eb12835b23d3166
parent fdc0cff65d4482218f748d44369cfe4b876fcca8
author Ian Anderson <iana@apple.com> 1692821862 -0700
committer Copybara-Service <copybara-worker@google.com> 1693421138 -0700

[Headers][Modules] Make separate headers for the stdarg.h and stddef.h pieces so that they can be modularized

stdarg.h and stddef.h have to be textual headers in their upcoming modules to support their `__needs_xxx` macros. That means that they won't get precompiled into their modules' pcm, and instead their declarations will go into every other pcm that uses them. For now that's ok since the type merger can handle the declarations in these headers, but it's suboptimal at best. Make separate headers for all of the pieces so that they can be properly modularized.

Reviewed By: aaron.ballman, ChuanqiXu

Differential Revision: https://reviews.llvm.org/D158709

GitOrigin-RevId: 680da4b5d7ec05a1e6656f2a7603a7b843268bab