Add support for Zval IS_INDIRECT #920

Job	Run time
Build with ZTS	1m 52s
Test with embed	1m 41s
Build and Test (ubuntu-latest, 8.0, stable, 17, nts)	1m 48s
Build and Test (ubuntu-latest, 8.0, nightly, 17, nts)	1m 39s
Build and Test (ubuntu-latest, 8.1, stable, 17, nts)	1m 30s
Build and Test (ubuntu-latest, 8.1, nightly, 17, nts)	1m 39s
Build and Test (ubuntu-latest, 8.2, stable, 17, nts)	3m 4s
Build and Test (ubuntu-latest, 8.2, nightly, 17, nts)	1m 17s
Build and Test (ubuntu-latest, 8.3, stable, 17, nts)	1m 49s
Build and Test (ubuntu-latest, 8.3, nightly, 17, nts)	1m 51s
Build and Test (macos-latest, 8.0, stable, 15, nts)	3m 59s
Build and Test (macos-latest, 8.0, nightly, 15, nts)	3m 17s
Build and Test (macos-latest, 8.1, stable, 15, nts)	4m 15s
Build and Test (macos-latest, 8.1, nightly, 15, nts)	3m 50s
Build and Test (macos-latest, 8.2, stable, 15, nts)	2m 45s
Build and Test (macos-latest, 8.2, nightly, 15, nts)	3m 4s
Build and Test (macos-latest, 8.3, stable, 15, nts)	3m 57s
Build and Test (macos-latest, 8.3, nightly, 15, nts)	4m 31s
Build and Test (windows-latest, 8.0, nightly, 17, ts)	2m 0s
Build and Test (windows-latest, 8.0, nightly, 17, nts)	3m 17s
Build and Test (windows-latest, 8.1, nightly, 17, ts)	2m 26s
Build and Test (windows-latest, 8.1, nightly, 17, nts)	3m 6s
Build and Test (windows-latest, 8.2, nightly, 17, ts)	2m 33s
Build and Test (windows-latest, 8.2, nightly, 17, nts)	2m 27s
Build and Test (windows-latest, 8.3, nightly, 17, ts)	2m 41s
Build and Test (windows-latest, 8.3, nightly, 17, nts)	3m 14s
	1h 9m 32s

Provide feedback