Fix colon autocorrect when preprocessor macros are present

[marcelofabri]

Fixes #2099

[SwiftLintBot]

	12 Messages
📖	Linting Aerial with this PR took 0.42s vs 0.39s on master (7% slower)
📖	Linting Alamofire with this PR took 3.42s vs 3.37s on master (1% slower)
📖	Linting Firefox with this PR took 13.46s vs 13.37s on master (0% slower)
📖	Linting Kickstarter with this PR took 20.79s vs 20.82s on master (0% faster)
📖	Linting Moya with this PR took 1.96s vs 1.96s on master (0% slower)
📖	Linting Nimble with this PR took 1.91s vs 1.91s on master (0% slower)
📖	Linting Quick with this PR took 0.58s vs 0.56s on master (3% slower)
📖	Linting Realm with this PR took 3.73s vs 3.79s on master (1% faster)
📖	Linting SourceKitten with this PR took 1.19s vs 1.17s on master (1% slower)
📖	Linting Sourcery with this PR took 5.0s vs 5.06s on master (1% faster)
📖	Linting Swift with this PR took 14.41s vs 14.59s on master (1% faster)
📖	Linting WordPress with this PR took 16.57s vs 16.79s on master (1% faster)

Generated by 🚫 Danger

[codecov-io]

Codecov Report

Merging #2105 into master will decrease coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2105      +/-   ##
==========================================
- Coverage   89.74%   89.73%   -0.02%     
==========================================
  Files         262      262              
  Lines       15117    15117              
  Branches      981      983       +2     
==========================================
- Hits        13567    13565       -2     
- Misses       1532     1534       +2     
  Partials       18       18

Impacted Files	Coverage Δ
Source/SwiftLintFramework/Rules/ColonRule.swift	95% <ø> (ø)	⬆️
...wiftLintFramework/Rules/ColonRule+Dictionary.swift	90.32% <100%> (ø)	⬆️
Source/SwiftLintFramework/Models/Command.swift	95.65% <0%> (-2.18%)	⬇️

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