src/vs/workbench/contrib/tasks/common/problemMatcher.ts/fromString
	export function fromString(value: string): ProblemLocationKind | undefined {
		value = value.toLowerCase();
		if (value === 'file') {
			return ProblemLocationKind.File;
		} else if (value === 'location') {
			return ProblemLocationKind.Location;
		} else {
			return undefined;
		}
	}