Bump syn from 1.0.109 to 2.0.42

[dependabot]

Bumps syn from 1.0.109 to 2.0.42.

Release notes

Sourced from syn's releases.

2.0.42

• Documentation improvements

2.0.41

• Support parsing syn::Field in parse_quote! (#1548)

2.0.40

• Fix some edge cases of handling None-delimited groups in expression parser (#1539, #1541, #1542, #1543, #1544, #1545)

2.0.39

• Fix parsing of return expression in match guards (#1528)
• Improve error message on labeled loop as value expression for break (#1531)

2.0.38

• Fix "method 'peek' has an incompatible type for trait" error when defining bool as a custom keyword (#1518, thanks @​Vanille-N)

2.0.37

• Work around incorrect future compatibility warning in rustc 1.74.0-nightly

2.0.36

• Restore compatibility with --generate-link-to-definition documentation builds (#1514)

2.0.35

• Make rust-analyzer produce preferred brackets for invocations of Token! macro (#1510, #1512)

2.0.34

• Documentation improvements

2.0.33

• Special handling for the (/*ERROR*/) placeholder that rustc uses for macros that fail to expand

2.0.32

• Add Path::require_ident accessor (#1496, thanks @​Fancyflame)

2.0.31

• Parse generics and where-clause on const items (rust-lang/rust#113521)

2.0.30

• Parse unnamed struct/union type syntax (rust-lang/rust#49804)

2.0.29

• Partially work around rust-analyzer bug (rust-lang/rust-analyzer#9911)

2.0.28

• Fix inconsistency between full and non-full expression parse errors (#1491)

2.0.27

• Documentation improvements (thanks @​GuillaumeGomez)

2.0.26

... (truncated)

Commits

• 6dcf8ab Release 2.0.42
• 4349d0b Merge pull request #1551 from dtolnay/cursorexample
• 12ff3d1 Add a real-world example for ParseBuffer::cursor
• bdd0645 Precondition for cmp_asssuming_same_buffer is to check same_buffer
• a6ac138 Update test suite to nightly-2023-12-19
• 66ee902 Ignore blocks_in_conditions clippy lint
• e11575e Ignore uninhabited_references clippy lint
• 63b1701 Release 2.0.41
• 920ab7d Merge pull request #1548 from dtolnay/parsequotefield
• 5e15924 Test parse_quote implementation for Field
• Additional commits viewable in compare view

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[dependabot]

Superseded by #75.