src/vs/workbench/common/contributions.ts/WorkbenchContributionsRegistry/start
class WorkbenchContributionsRegistry:	start(accessor: ServicesAccessor): void {
		const instantiationService = this.instantiationService = accessor.get(IInstantiationService);
		const lifecycleService = this.lifecycleService = accessor.get(ILifecycleService);
		const logService = this.logService = accessor.get(ILogService);
		const environmentService = this.environmentService = accessor.get(IEnvironmentService);

		for (const phase of [LifecyclePhase.Starting, LifecyclePhase.Ready, LifecyclePhase.Restored, LifecyclePhase.Eventually]) {
			this.instantiateByPhase(instantiationService, lifecycleService, logService, environmentService, phase);
		}
	}