Fixes redundant_void_return rule autocorrect when preprocessor macros are present.

[jszumski]

Fixes #2115. Very similar to #2105

[SwiftLintBot]

	12 Messages
📖	Linting Aerial with this PR took 0.46s vs 0.6s on master (23% faster)
📖	Linting Alamofire with this PR took 3.69s vs 5.82s on master (36% faster)
📖	Linting Firefox with this PR took 15.57s vs 17.72s on master (12% faster)
📖	Linting Kickstarter with this PR took 26.13s vs 25.55s on master (2% slower)
📖	Linting Moya with this PR took 2.29s vs 2.83s on master (19% faster)
📖	Linting Nimble with this PR took 2.21s vs 3.14s on master (29% faster)
📖	Linting Quick with this PR took 0.66s vs 1.06s on master (37% faster)
📖	Linting Realm with this PR took 4.29s vs 4.71s on master (8% faster)
📖	Linting SourceKitten with this PR took 1.4s vs 1.61s on master (13% faster)
📖	Linting Sourcery with this PR took 5.99s vs 6.15s on master (2% faster)
📖	Linting Swift with this PR took 21.74s vs 21.09s on master (3% slower)
📖	Linting WordPress with this PR took 22.9s vs 23.41s on master (2% faster)

Generated by 🚫 Danger

[codecov-io]

Codecov Report

Merging #2116 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master   #2116      +/-   ##
=========================================
+ Coverage    89.9%   89.9%   +<.01%     
=========================================
  Files         266     266              
  Lines       15370   15372       +2     
  Branches     1013    1012       -1     
=========================================
+ Hits        13818   13820       +2     
  Misses       1532    1532              
  Partials       20      20

Impacted Files	Coverage Δ
.../SwiftLintFramework/Rules/ClosureSpacingRule.swift	100% <100%> (ø)	⬆️
...tLintFramework/Rules/RedundantVoidReturnRule.swift	94.91% <100%> (ø)	⬆️
Source/SwiftLintFramework/Models/Command.swift	97.82% <0%> (+0.04%)	⬆️

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[marcelofabri]

Thanks!