src/vs/editor/browser/controller/mouseTarget.ts/MouseTarget/_typeToString
class MouseTarget:	private static _typeToString(type: MouseTargetType): string {
		if (type === MouseTargetType.TEXTAREA) {
			return 'TEXTAREA';
		}
		if (type === MouseTargetType.GUTTER_GLYPH_MARGIN) {
			return 'GUTTER_GLYPH_MARGIN';
		}
		if (type === MouseTargetType.GUTTER_LINE_NUMBERS) {
			return 'GUTTER_LINE_NUMBERS';
		}
		if (type === MouseTargetType.GUTTER_LINE_DECORATIONS) {
			return 'GUTTER_LINE_DECORATIONS';
		}
		if (type === MouseTargetType.GUTTER_VIEW_ZONE) {
			return 'GUTTER_VIEW_ZONE';
		}
		if (type === MouseTargetType.CONTENT_TEXT) {
			return 'CONTENT_TEXT';
		}
		if (type === MouseTargetType.CONTENT_EMPTY) {
			return 'CONTENT_EMPTY';
		}
		if (type === MouseTargetType.CONTENT_VIEW_ZONE) {
			return 'CONTENT_VIEW_ZONE';
		}
		if (type === MouseTargetType.CONTENT_WIDGET) {
			return 'CONTENT_WIDGET';
		}
		if (type === MouseTargetType.OVERVIEW_RULER) {
			return 'OVERVIEW_RULER';
		}
		if (type === MouseTargetType.SCROLLBAR) {
			return 'SCROLLBAR';
		}
		if (type === MouseTargetType.OVERLAY_WIDGET) {
			return 'OVERLAY_WIDGET';
		}
		return 'UNKNOWN';
	}