Robert Widmann db845eb6b3 Correct the ownership model for sil-opt ...

Destroying the SIL remark streamer after transferring ownership to LLVM
is frought. For one, the streamer holds the remark file's stream open.
Destroying it early doesn't accomodate sil-opt, which transfers control
to LLVM before running passes that emit remarks.

Instead, just take a reference to the context that the streamer gets
parented onto. If the remarks streamer infrastructure could just hold
the file stream open for us, we wouldn't have to do any of this.

2020-04-21 13:30:56 -07:00

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