Michael Spencer be5c66d97d [clang] Improve module out of date error message (#128103) ...

When a pcm file has a different size or modification time than it had
when it was written to another module's IMPORT table Clang emits:

`<pcm> is out of date and needs to be rebuilt: module file out of date`

This is difficult to understand what's happening because there are a lot
of reasons that a module file can be out of date. This changes the
latter part of that message to:

`module file has a different size or mtime than expected`

Which makes it clearer what the issue is. For future work it would be
nice if a more detailed explanation of the issue could be emitted as a
note instead.

2025-02-24 11:18:21 -08:00

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