[MSAN] add flag to suppress storage of stack variable names with -sanitize-memory-track-origins

Allows for even more savings in the binary image while simultaneously removing the name of the offending stack variable.

Depends on D131631

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D131728

GitOrigin-RevId: 532564de17bf2b1e0acd55e566429d4b7928ef23
4 files changed