Bump syn from 1.0.109 to 2.0.85

[dependabot]

Bumps syn from 1.0.109 to 2.0.85.

Release notes

Sourced from syn's releases.

2.0.85

• Preserve extern static unsafety in ForeignItem::Verbatim (#1773)

2.0.84

• Parse safe and explicitly unsafe extern items (#1768, rust-lang/rust#123743, rust-lang/rfcs#3484)
• Parse self captures: impl Sized + use<Self> (#1772)

2.0.83

• Documentation improvements

2.0.82

• Provide Parse impls for PreciseCapture and CapturedParam (#1757, #1758)
• Support parsing unsafe attributes (#1759)
• Add Fold and VisitMut methods for Vec<Attribute> (#1762)

2.0.81

• Add TypeParamBound::PreciseCapture to represent precise capture syntax impl Trait + use<'a, T> (#1752, #1753, #1754)

2.0.80

• Add Expr::RawAddr (#1743)
• Reject precise captures and ~const in inappropriate syntax positions (#1747)
• Reject trait bound containing only precise capture (#1748)

2.0.79

• Fix infinite loop on parsing chained ranges (#1741)
• Fix panic in parsing use items containing absolute paths (#1742)

2.0.78

• Fix infinite loop on chained comparison (#1739)

2.0.77

• Support parsing Expr::Tuple in non-"full" mode (#1727)

2.0.76

• Enforce that tail call become keyword is followed by an expression (#1725)

2.0.75

• Automatically fill in missing turbofish when printing ExprPath and other paths in expression position (#1722)

2.0.74

• Fix "temporary is dropped and runs the destructor for type `impl Iterator`" regression affecting certain use of Generics iterator methods (#1719)

2.0.73

• Support parsing unnamed C varargs within function pointer types (#1711)
• Improve synthesized error message on unexpected tokens at the end of the expected contents of a delimited group (#1713)
• Support parsing unstable tail call syntax (#1714, rust-lang/rust#112788)
• Add Fields::members iterator (#1716, thanks @​Fancyflame)

2.0.72

• Parse use<'a, T> precise capturing bounds (#1707, thanks @​compiler-errors)

... (truncated)

Commits

• 293d7c9 Release 2.0.85
• c94df74 Merge pull request #1773 from dtolnay/unsafestatic
• 8d7814a Preserve extern static unsafety in ForeignItem::Verbatim
• 2e159bc Release 2.0.84
• 058e7d0 Merge pull request #1772 from dtolnay/selfcapture
• 2a9e9fb Parse self captures: impl Sized + use\<Self>
• e478e03 Merge pull request #1771 from dtolnay/up
• 19baaa6 Categorize newly failing rust repo source files
• f89eca2 Update test suite to nightly-2024-10-23
• 83e3b08 Merge pull request #1768 from dtolnay/safe
• Additional commits viewable in compare view

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