Bump syn from 1.0.39 to 1.0.40

[dependabot-preview[bot]]

Bumps syn from 1.0.39 to 1.0.40.

Release notes

Sourced from syn's releases.

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)

Commits

• b66b940 Release 1.0.40
• 9a51f1c Merge pull request #894 from dtolnay/float
• 63ccc27 Allow 'e' as first character of float suffix
• c2ef263 Add test of suffix on a float literal
• 19f8297 Update generated code with proc-macro2 1.0.20's formatting
• ec38881 Update tokenstream whitespace for proc-macro2 1.0.20
• aad8e4b Update test suite to nightly-2020-09-03
• 0b3145d Replace double check on Option with 'if let'
• 9fa964d Update test suite to nightly-2020-08-24
• 7f7d995 Update test suite to nightly-2020-08-22
• See full diff in compare view

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[codecov[bot]]

Codecov Report

Merging #153 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #153   +/-   ##
=======================================
  Coverage   39.58%   39.58%           
=======================================
  Files          25       25           
  Lines        3572     3572           
=======================================
  Hits         1414     1414           
  Misses       2158     2158           

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[dependabot-preview[bot]]

Superseded by #158.