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Author SHA1 Message Date
Zalathar d90fd027c8 coverage: Use `SpanMarker` to mark the full condition of `if !` 
When MIR is built for an if-not expression, the `!` part of the condition
doesn't correspond to any MIR statement, so coverage instrumentation normally
can't see it.

We can fix that by deliberately injecting a dummy statement whose sole purpose
is to associate that span with its enclosing block.
 2023-12-08 22:40:49 +11:00
Zalathar d2d742c4cc coverage: Add a dedicated test for coverage of `if !` 2023-12-08 22:40:49 +11:00