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e73396bc8a
Specifically, we write a string out like:
sil [isolation "$REPRESENTATION OF ISOLATION"] @function : $@convention(thin) ...
The idea is that by using a string, we avoid parsing issues of the isolation and
have flexibility. I left in the way we put isolation into the comment above
functions so I did not break any tests that rely on it. I also made it so that
we only accept this with sil tests that pass in the flag
"sil-print-function-isolation-info". I am going to for the next release put in a
full real implementation of this that allows for actor isolation to become a
true first class citizen in SIL. But for now this at least lets us write tests
in the short term.
Since this is temporary and behind a flag, I did not add support for
serialization since this is just for writing textual SIL tests.
(cherry picked from commit ee3027c2ca)
Conflicts:
lib/SIL/Parser/ParseSIL.cpp