Alexis Laferrière 17183629e4 [Serialization] Harden the compiler tag check on swiftmodules ...

When two different serialization formats share a version number but are
different enough, it can defeat the check to restrict loading
swiftmodules built by the same compiler. Add a backup check in case the
REVISION block is unseen, for swiftmodules only not swiftdoc or
sourceinfo.

rdar://93188070

2022-05-12 13:12:48 -07:00

53 KiB

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