Support --bless for pp-exact pretty printer tests #93104
Merged
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I ran into this while working on the stack of PRs containing #93102.
x.py test src/test/pretty --bless
previously wouldfatal
instead of blessing the input files.Tested by making a silly pretty-printer tweak and running the above command: 98823c3929ebfe796786345c5ee713f63317d9c6