bors 1c2c6b6700 Auto merge of #84582 - richkadel:issue-84561, r=tmandry ... Vastly improves coverage spans for macros Fixes: #84561 This resolves problems where macros like `trace!(...)` would show zero coverage if tracing was disabled, and `assert_eq!(...)` would show zero coverage if the assertion did not fail, because only one coverage span was generated, for the branch. This PR started with an idea that I could just drop branching blocks with same span as expanded macro. (See the fixed issue for more details.) That did help, but it didn't resolve everything. I also needed to add a span specifically for the macro name (plus `!`) to ensure the macro gets coverage even if it's internal expansion adds conditional branching blocks that are retained, and would otherwise drop the outer span. Now that outer span is _only_ the `(argument, list)`, which can safely be dropped now), because the macro name has its own span. While testing, I also noticed the spanview debug output can cause an ICE on a function with no body. The workaround for this is included in this PR (separate commit). r? `@tmandry` cc? `@wesleywiser`		2021-05-01 07:48:24 +00:00
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src	Auto merge of #84582 - richkadel:issue-84561, r=tmandry	2021-05-01 07:48:24 +00:00
Cargo.toml	bumped smallvec deps	2021-02-14 18:03:11 +03:00