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86a66c8171
If a BCB has more than one code region, those extra regions can now all be stored in the same coverage statement, instead of being stored in additional statements.
The tests in ./status-quo were copied from tests/run-coverage in order to
capture the current behavior of the instrumentor on non-trivial programs.
The actual mappings have not been closely inspected.
Maintenance note
These tests can be sensitive to small changes in MIR spans or MIR control flow, especially in HIR-to-MIR lowering or MIR optimizations.
If you haven't touched the coverage code directly, and the run-coverage test
suite still works, then it should usually be OK to just --bless these
coverage mapping tests as necessary, without worrying too much about the exact
changes.