Auto merge of #103898 - Nilstrieb:match-macro, r=nnethercote

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Retry failed macro matching for diagnostics

When a declarative macro fails to match, retry the matching to collect diagnostic info instead of collecting it on the fly in the hot path. Split out of #103439.

You made a bunch of changes to declarative macro matching, so
r? `@nnethercote`

This change should produce a few small perf wins: https://github.com/rust-lang/rust/pull/103439#issuecomment-1294249602

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bors 2022-11-11 04:54:59 +00:00

parent 67f694bbd7 eab58d6c39

commit a065458562

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