Author: Andrew Nicols
MDL-86204 core: Add environment tests for dev dependencies
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a4744bc5fe8a7be146eabb57c05055157e8b5233
http://github.com/moodle/moodle/commit/a4744bc5fe8a7be146eabb57c05055157e8b5233
+ 5.1 en [composernotfound,core_admin]
+ 5.1 en [composerdeveloperdependenciesinstalled,core_admin]
+ 5.1 en [composeroptimisedindevmode,core_admin]
+ 5.1 en [composernotoptimised,core_admin]