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1a7fdc7d5d
coverage: Clarify some parts of coverage counter creation This is a series of semi-related changes that are trying to make the `counters` module easier to read, understand, and modify. For example, the existing code happens to avoid ever using the count for a `TerminatorKind::Yield` node as the count for its sole out-edge (since doing so would be incorrect), but doesn't do so explicitly, so seemingly-innocent changes can result in baffling test failures. This PR also takes the opportunity to simplify some debug-logging code that was making its surrounding code disproportionately hard to read. There should be no changes to the resulting coverage instrumentation/mappings, as demonstrated by the absence of changes to the coverage test suite. |
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