Fix tuple type parentheses handling

[sharwell]

Fixes #2472
Fixes #2476
Fixes #2479

[codecov]

Codecov Report

Merging #2478 into master will increase coverage by 0.07%.
The diff coverage is 98.5%.

@@            Coverage Diff             @@
##           master    #2478      +/-   ##
==========================================
+ Coverage   97.21%   97.28%   +0.07%     
==========================================
  Files         735      735              
  Lines       94995    95255     +260     
  Branches     3470     3472       +2     
==========================================
+ Hits        92347    92668     +321     
+ Misses       1751     1746       -5     
+ Partials      897      841      -56

Impacted Files	Coverage Δ
...s/SA1008OpeningParenthesisMustBeSpacedCorrectly.cs	100% <100%> (+2.02%)	⬆️
...s/SA1009ClosingParenthesisMustBeSpacedCorrectly.cs	100% <100%> (+0.97%)	⬆️
...est.CSharp7/SpacingRules/SA1009CSharp7UnitTests.cs	100% <100%> (ø)	⬆️
...est.CSharp7/SpacingRules/SA1008CSharp7UnitTests.cs	100% <100%> (ø)	⬆️
...ers/StyleCop.Analyzers/Helpers/TypeSyntaxHelper.cs	68.42% <100%> (+18.42%)	⬆️
...leCop.Analyzers.Test/Helpers/MetadataReferences.cs	75% <69.23%> (-19.12%)	⬇️
...A1004DocumentationLinesMustBeginWithSingleSpace.cs	65.62% <0%> (ø)	⬆️
...es/DocumentationRules/FileHeaderCodeFixProvider.cs	96.96% <0%> (+0.33%)	⬆️
...alyzers/StyleCop.Analyzers/Helpers/TriviaHelper.cs	84.12% <0%> (+0.33%)	⬆️
... and 49 more

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