Fix invalid YAML. (#929)

test/built-ins/TypedArrays/buffer-arg-proto-from-ctor-realm-sab.js

@@ -24,8 +24,7 @@ info: |
        b. Let proto be realm's intrinsic object named intrinsicDefaultProto.
     5. Return proto.
 includes: [testTypedArray.js]
-features: [SharedArrayBuffer]
-features: [Reflect]
+features: [SharedArrayBuffer, Reflect]
 ---*/
 
 var other = $262.createRealm().global;

test/built-ins/TypedArrays/buffer-arg-use-custom-proto-if-object-sab.js

@@ -31,9 +31,8 @@ info: >
   10. Set the [[Prototype]] internal slot of A to prototype.
   ...
   12. Return A.
-features: [Reflect]
 includes: [testTypedArray.js]
-features: [SharedArrayBuffer]
+features: [SharedArrayBuffer, Reflect]
 ---*/
 
 var buffer = new SharedArrayBuffer(8);