Change generic-type algorithm

[kentr0w]

What's done:

Changed algorithm

closes #493

[codecov]

Codecov Report

Merging #536 (30eea6b) into master (516347a) will increase coverage by 0.02%.
The diff coverage is 50.00%.

@@             Coverage Diff              @@
##             master     #536      +/-   ##
============================================
+ Coverage     81.88%   81.90%   +0.02%     
- Complexity     1635     1636       +1     
============================================
  Files            78       78              
  Lines          4123     4123              
  Branches       1302     1302              
============================================
+ Hits           3376     3377       +1     
  Misses          219      219              
+ Partials        528      527       -1     

Flag	Coverage Δ	Complexity Δ
unittests	81.90% <50.00%> (+0.02%)	0.00 <5.00> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
...at-rules/src/main/kotlin/generated/WarningNames.kt	0.00% <ø> (ø)	0.00 <0.00> (ø)
.../org/cqfn/diktat/ruleset/rules/IdentifierNaming.kt	83.20% <50.00%> (+0.76%)	77.00 <5.00> (+1.00)

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[petertrr]

lgtm