Fix #130

Job	Run time
Type Checker	32s
Unit Tests (ubuntu-latest, 8.2)	11s
Coding Guidelines	44s
Unit Tests (ubuntu-latest, 8.3)	36s
Unit Tests (ubuntu-latest, 8.4)	31s
Unit Tests (windows-latest, 8.2)	43s
Unit Tests (windows-latest, 8.3)	32s
Unit Tests (windows-latest, 8.4)	32s
End-to-End Tests (ubuntu-latest, 8.2)	41s
End-to-End Tests (ubuntu-latest, 8.3)	1m 0s
End-to-End Tests (ubuntu-latest, 8.4)	58s
End-to-End Tests (windows-latest, 8.2)	1m 21s
End-to-End Tests (windows-latest, 8.3)	1m 18s
End-to-End Tests (windows-latest, 8.4)	1m 28s
Code Coverage	1m 15s
Build PHAR	29s
Test PHAR (8.2, pcov)	18s
Test PHAR (8.2, xdebug)	31s
Test PHAR (8.3, pcov)	45s
Test PHAR (8.3, xdebug)	50s
Test PHAR (8.4, pcov)	44s
Test PHAR (8.4, xdebug)	49s
	16m 48s

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