Bump syn from 0.15.40 to 1.0.53

[dependabot-preview[bot]]

Bumps syn from 0.15.40 to 1.0.53.

Release notes

Sourced from syn's releases.

1.0.53

• Parse impl !Trait {...} syntax (#936)

1.0.52

• Parse unsafe extern block syntax (#918)
• Parse unsafe mod syntax (#919)
• Parse const {...} block syntax (#921)
• Parse destructuring assignment syntax (#933)

1.0.51

• Allow parsing signatures in which const generic params appear in front of lifetime params (#920)

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)

Commits

• da1818e Release 1.0.53
• 37dff90 Merge pull request #936 from dtolnay/negative
• 43a2eaa Hide negative impls from rustfmt
• 0399ba4 Parse weird negative impls
• 15de586 Update test suite to nightly-2020-11-29
• 3310a93 Update test suite to nightly-2020-11-28
• d8dde48 Release 1.0.52
• 530f2c7 Merge pull request #934 from dtolnay/destructuring-assignment
• 8ae9129 Parse destructuring assignment
• 785c8c9 Update test suite to nightly-2020-11-27
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #621.