allow V8 to optimize globToRegExp

src/vs/base/common/glob.ts

@@ -231,12 +231,7 @@ function globToRegExp(pattern: string): RegExp {
 	regEx = '^' + regEx + '$';
 
 	// Convert to regexp and be ready for errors
-	let result: RegExp;
-	try {
-		result = new RegExp(regEx);
-	} catch (error) {
-		result = /.^/; // create a regex that matches nothing if we cannot parse the pattern
-	}
+	let result = toRegExp(regEx);
 
 	// Make sure to cache
 	CACHE[pattern] = result;
@@ -244,6 +239,14 @@ function globToRegExp(pattern: string): RegExp {
 	return result;
 }
 
+function toRegExp(regEx: string): RegExp {
+	try {
+		return new RegExp(regEx);
+	} catch (error) {
+		return /.^/; // create a regex that matches nothing if we cannot parse the pattern
+	}
+}
+
 /**
  * Simplified glob matching. Supports a subset of glob patterns:
  * - * matches anything inside a path segment