Files
clang-p2996/clang/lib/Frontend
Richard Howell 75fbb5d223 [clang][nfc] refactor Module::Header to use OptionalFileEntryRef
Refactor the `Module::Header` class to use an `OptionalFileEntryRef`
instead of a `FileEntry*`. This is preparation for refactoring the
`TopHeaderNames` to use `FileEntryRef` so that we preserve the
lookup path of the headers when serializing.

This is mostly based on https://reviews.llvm.org/D90497

Reviewed By: jansvoboda11

Differential Revision: https://reviews.llvm.org/D142113
2023-01-20 07:23:11 -08:00
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