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

src/runtime.js

Index: src/runtime.js
diff --git a/src/runtime.js b/src/runtime.js
index 22f888d814194c92216cd933f3310c627ef664a5..348fd747f5b9171c45b493bc824d92a4ba725911 100644
--- a/src/runtime.js
+++ b/src/runtime.js
@@ -658,7 +658,6 @@ function DefaultNumber(x) {
   throw %MakeTypeError('cannot_convert_to_primitive', []);
 }
 
-
 // ECMA-262, section 8.6.2.6, page 28.
 function DefaultString(x) {
   var toString = x.toString;
@@ -676,6 +675,12 @@ function DefaultString(x) {
   throw %MakeTypeError('cannot_convert_to_primitive', []);
 }
 
+function ToPositiveInteger(x, rangeErrorName) {
+  var i = TO_INTEGER(x);
+  if (i < 0) throw %MakeRangeError(rangeErrorName);
+  return i;
+}
+
 
 // NOTE: Setting the prototype for Array must take place as early as
 // possible due to code generation for array literals.  When