Fix exception on duplicate constant name in enum

[vearutop]

No description provided.

[github-actions]

Lines Of Code

Language	Files	Lines	Code	Comments	Blanks	Complexity	Bytes
Markdown	2	253 (+6)	188 (+4)	0	65 (+2)	0	8.2K (+192B)
PHP	213	29790 (+74)	17292 (+56)	8849 (+6)	3649 (+12)	710	824.5K (+1.9K)
YAML	5 (+2)	177 (+78)	160 (+74)	1	16 (+4)	0	4.2K (+1.5K)

[codecov]

Codecov Report

Merging #42 (1671335) into master (7f924e4) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master      #42      +/-   ##
============================================
- Coverage     86.80%   86.79%   -0.01%     
- Complexity      667      669       +2     
============================================
  Files            40       40              
  Lines          1735     1749      +14     
============================================
+ Hits           1506     1518      +12     
- Misses          229      231       +2     

Impacted Files	Coverage Δ
src/JsonSchema/SchemaBuilder.php	93.95% <100.00%> (+0.16%)	⬆️
src/PhpClass.php	98.59% <100.00%> (+0.02%)	⬆️
src/Property/PatternPropertiesGetter.php	87.50% <0.00%> (-12.50%)	⬇️
src/Markdown/TypeBuilder.php	76.88% <0.00%> (-0.35%)	⬇️
src/PhpDocTag.php	100.00% <0.00%> (ø)
src/PhpFile.php	87.80% <0.00%> (+0.30%)	⬆️
src/PhpDoc.php	73.52% <0.00%> (+0.80%)	⬆️

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