src/vs/workbench/contrib/tasks/common/problemCollectors.ts/AbstractProblemCollector/mergeApplyTo
class AbstractProblemCollector:	private mergeApplyTo(current: ApplyToKind, value: ApplyToKind): ApplyToKind {
		if (current === value || current === ApplyToKind.allDocuments) {
			return current;
		}
		return ApplyToKind.allDocuments;
	}