Bump syn from 0.15.40 to 1.0.50

[dependabot-preview]

Bumps syn from 0.15.40 to 1.0.50.

Release notes

Sourced from syn's releases.

1.0.50

• Apply doc(cfg(...)) on feature gated APIs for docs.rs-rendered documentation (#925)

1.0.49

• Fix parsing async functions inside None-delimited groups in a statement context (#916)

1.0.48

• Rebuild for https://astexplorer.net

1.0.47

• Documentation improvements

1.0.46

• Fix parsing structured attributes that contain nested absolute paths, such as #[derive(::serde::Serialize)] (#909)

1.0.45

• Provide more detailed error messages when parsing specific literal kind (#908)

1.0.44

• Fix some parsing of patterns inside of None-delimited groups (#907)

1.0.43

• Add Parse impl for syn::Signature

1.0.42

• Fix several bugs involving unusual suffixes on integer and floating point literal tokens (#898, #899, #900)

1.0.41

• Fix panic on printing an incomplete (having fewer path segments than originally parsed with) qualified path (ExprPath, PatPath, TypePath containing QSelf) (#891, thanks @taiki-e)
• Fix panic triggered by syntactically invalid overflowing negative float literal after . in a field access position, e.g. let _ = obj.-0.9E999999 (#895, thanks @sameer)
• Enable using parse_macro_input! with a Parser function rather than type having a Parse impl (#896, thanks @sbrocket)

1.0.40

• Fix panic on parsing float literals having both an exponent and a suffix beginning with 'e' or 'E', such as 9e99e999 (#893)

1.0.39

• Improve compile time by pre-expanding derives (#885)
• Parse const generic parameters in any order relative to type parameters (#886)

1.0.38

• Accept traits with parenthesized path arguments in impls (#880, thanks @alecmocatta)

1.0.37

• Handle shebang in a way that matches rustc 1.46+ (#876, rust-lang/rust#71487, rust-lang/rust#73596)

  #!//am/i/a/comment
  fn main() {} // ^ shebang

Commits

• 141cd89 Release 1.0.50
• f29cd0b Merge pull request #926 from dtolnay/doc_cfg
• d9fb416 Revert doc cfg from Eq impls due to rustdoc bug
• 99be307 Put doc cfg on extra-traits impls
• 82777db Put doc cfg on Clone impls
• e1b2e9f Put doc cfg on Parse impls
• 9a59268 Put doc cfg on ToTokens impls
• fc37ee3 Merge pull request #925 from dtolnay/doc_cfg
• 4315d46 Set doc(cfg(...)) on feature gated APIs
• b04357f Fix incorrect doc comment about Lifetime being conditional
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #619.