[stable][clang][cas] Ignore the -fdepfile-entry=
dependency option when calculating the cache key
#5282
+50
−5
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-fdepfile-entry=
is a dependency option that can be treated as "transparent", not affecting the cached compilation. The passed-in filenames are added at the point where the dependency file is generated and are not read from the file system.rdar://99683427
(cherry picked from commit dde9a72)