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Bumps proc-macro2 from 1.0.53 to 1.0.56.
Release notes
Sourced from proc-macro2's releases.
Commits
72ee0b3
Release 1.0.56ddf7692
Merge pull request #382 from dtolnay/refunwindsafecda93c5
Ensure data structures are RefUnwindSafe on all versions of Ruste82b074
Merge pull request #381 from dtolnay/escape07efc1c4
Implement consistent behavior for Literal::string on all versions of Rust9c092a3
Merge pull request #380 from dtolnay/octalescape6c21627
Fix literal_string test on rustc older than 1.615d3e58b
Ignore octal_escapes clippy lint in test57b4db1
Circumvent clippy::octal_escapes lint in generated literalsd827973
Add regression test of \0 escaping for issue 363You can trigger a rebase of this PR by commenting
@dependabot rebase
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