Make bypassing capture context-aware #447
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This change makes the
capture/bypassmacro aware of the capture context in which it's running, so that it can more intelligently restore previous out/err writers (or just pass through if no capturing is active).Unsupported corner cases:
Nested capturing (will write to the next level up, not the original out/err)If this approach looks sensible, I'm happy to clean up the code, add tests, etc.
Fixes #446