don't forget return statements, #23332

src/vs/base/common/filters.ts

@@ -602,7 +602,7 @@ function findAllMatches(patternLen: number, patternPos: number, wordPos: number,
 			matches.unshift(wordPos);
 
 		} else {
-			// undefined
+			return undefined;
 		}
 	}
 

src/vs/base/test/common/filters.test.ts

@@ -214,6 +214,9 @@ suite('Filters', () => {
 		assertMatches('WordCla', 'WordCharacterClassifier', '^W^o^r^d^CharacterC^l^assifier', fuzzyScore);
 		assertMatches('WordCCla', 'WordCharacterClassifier', '^W^o^r^d^Character^C^l^assifier', fuzzyScore);
 	});
+	test('fuzzyScore, #23332', function () {
+		assertMatches('dete', '"editor.quickSuggestionsDelay"', undefined, fuzzyScore);
+	});
 
 	test('fuzzyScore', function () {
 		assertMatches('ab', 'abA', '^a^bA', fuzzyScore);