Bugfix. A lot of FP LOCAL_VARIABLE_EARLY_DECLARATION

[aktsay6]

What's done:

• Fixed bugs

This pull request closes #589

[codecov]

Codecov Report

Merging #642 (19fdc50) into master (0728f36) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master     #642      +/-   ##
============================================
+ Coverage     80.73%   80.77%   +0.04%     
+ Complexity     1790     1789       -1     
============================================
  Files            90       90              
  Lines          4702     4718      +16     
  Branches       1423     1424       +1     
============================================
+ Hits           3796     3811      +15     
  Misses          321      321              
- Partials        585      586       +1     

Flag	Coverage Δ	Complexity Δ
unittests	80.77% <100.00%> (+0.04%)	0.00 <0.00> (ø)

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Impacted Files	Coverage Δ	Complexity Δ
...kotlin/org/cqfn/diktat/ruleset/rules/LineLength.kt	84.05% <100.00%> (ø)	74.00 <0.00> (ø)
...at/ruleset/rules/identifiers/LocalVariablesRule.kt	91.30% <100.00%> (+0.51%)	24.00 <0.00> (-1.00)	⬆️

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