fixup! [immutable-arraybuffer] Changes to existing ArrayBuffer.prototype properties

Co-authored-by: Philip Chimento <[email protected]>

Author: gibson042

test/built-ins/ArrayBuffer/prototype/resize/this-is-immutable-arraybuffer-object.js

@@ -15,9 +15,6 @@ features: [resizable-arraybuffer, immutable-arraybuffer]
 includes: [compareArray.js]
 ---*/
 
-assert.sameValue(typeof ArrayBuffer.prototype.resize, 'function',
-  'Method must exist.');
-
 var calls = [];
 
 var ab = (new ArrayBuffer(4)).transferToImmutable();

test/built-ins/ArrayBuffer/prototype/slice/species-returns-immutable-arraybuffer.js

@@ -49,7 +49,7 @@ assert.throws(TypeError, function() {
       return 2;
     }
   };
-  arrayBuffer.slice();
+  arrayBuffer.slice(start, end);
 });
 assert.compareArray(calls, ["start.valueOf", "end.valueOf", "Symbol.species(1)"],
   "Must read arguments before SpeciesConstructor.");