dev_178030 wip : fix memory leak on php7.4 : trace memory

Ghislain Loas requested to merge split_testsuites into master

dev_178030 wip : fix memory leak on php7.4 : split testSuites

dev_178030 wip : fix memory leak on php7.4 : split testSuites

dev_178030 wip : fix memory leak on php7.4 : split testSuites

This reverts commit 5599ca44.

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