Update typed arrays behavior to match ES6 rev 15. Remove TO_POSITIVE_INTEGER and throw on negative …

test/mjsunit/harmony/dataview-accessors.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 46 matching lines @@
       return 8;
     default:
       assertUnreachable(func);
   }
 }
 
 function checkGet(func, index, expected, littleEndian) {
   function doGet() {
     return view["get" + func](index, littleEndian);
   }
-  if (index < 0) index = 0;
-  if (index + getElementSize(func) - 1 < view.byteLength)
+  if (index >=0 && index + getElementSize(func) - 1 < view.byteLength)
       assertSame(expected, doGet());
   else
       assertThrows(doGet, RangeError);
 }
 
 function checkSet(func, index, value, littleEndian) {
   function doSet() {
     view["set" + func](index, value, littleEndian);
   }
-  actualIndex = index < 0 ? 0 : index;
-  if (actualIndex >= 0 &&
-      actualIndex + getElementSize(func) - 1 < view.byteLength) {
+  if (index >= 0 &&
+      index + getElementSize(func) - 1 < view.byteLength) {
     assertSame(undefined, doSet());
     checkGet(func, index, value, littleEndian);
   } else {
     assertThrows(doSet, RangeError);
   }
 }
 
 function test(isTestingGet, func, index, value, littleEndian) {
   if (isTestingGet)
     checkGet(func, index, value, littleEndian);
@@ skipping 212 matching lines @@
   CheckAccessor("setUint32");
   CheckAccessor("getInt32");
   CheckAccessor("setInt32");
   CheckAccessor("getFloat32");
   CheckAccessor("setFloat32");
   CheckAccessor("getFloat64");
   CheckAccessor("setFloat64");
 }
 
 TestGeneralAccessors();