src/vs/workbench/contrib/tasks/common/problemCollectors.ts/AbstractProblemCollector/removeResourceToClean
class AbstractProblemCollector:	protected removeResourceToClean(owner: string, resource: string): void {
		let resourceSet = this.resourcesToClean.get(owner);
		if (resourceSet) {
			resourceSet.delete(resource);
		}
	}