Bump proc-macro2 from 1.0.24 to 1.0.50

[dependabot]

Bumps proc-macro2 from 1.0.24 to 1.0.50.

Release notes

Sourced from proc-macro2's releases.

1.0.50

• Implement Hash for proc_macro2::LineColumn (#362)

1.0.49

• Opt out of -Zrustdoc-scrape-examples on docs.rs for now

1.0.48

• Documentation improvements

1.0.47

• Fix integer overflow when nesting depth of nested comments exceeds 4 billion (#357)

1.0.46

• Make proc_macro2::TokenStream's FromStr impl consistent with proc_macro::TokenStream's on strings that begin with a byte order mark \u{feff} (#353)

1.0.45

• Fix panic on parsing disallowed raw identifiers such as r#self (#351)

1.0.44

• Expose span.before() and span.after() to access an empty Span located immediately before or after the input span (#348, upstream tracking issue: rust-lang/rust#87552)

1.0.43

• Add keywords to crates.io metadata

1.0.42

• Improve parsing performance in non-macro mode (#335)
• Expose a size_hint() for TokenStream's iterator (#334)

1.0.41

• Produce an accurate .size_hint() from TokenStream's iterator (#334)

1.0.40

• Stabilize Ident::new_raw constructor (#331, thanks @​mystor)

1.0.39

• Replace unicode-xid with unicode-ident crate: https://github.com/dtolnay/unicode-ident

1.0.38

• Reduce allocations done by Literal::byte_string constructor (#328)

1.0.37

• Rely on unicode-xid to optimize ASCII properly (#325)

1.0.36

• Improve performance of creating literal tokens through quote! macro

1.0.35

• Try to diagnose "cannot find type SourceFile" errors better (#311)

1.0.34

... (truncated)

Commits

• 94c7519 Release 1.0.50
• f01da43 Merge pull request #362 from dtolnay/hashlinecolumn
• d4c564b Implement Hash for LineColumn
• 92a0295 Merge pull request #361 from dtolnay/linecolumn
• a4be982 Deduplicate implementations of LineColumn
• 9924b79 Prevent actions duplication on noop merge commits
• 37e89e1 Sync license text with rust-lang repos
• 8779f4c Update ui test suite to nightly-2022-12-30
• 293705d Release 1.0.49
• 6b9ee3d Opt out -Zrustdoc-scrape-examples on docs.rs
• Additional commits viewable in compare view

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