[typedarrays] Check detached buffer at start of typed array methods

test/mjsunit/es6/typedarray-reduce.js

Index: test/mjsunit/es6/typedarray-reduce.js
diff --git a/test/mjsunit/es6/typedarray-reduce.js b/test/mjsunit/es6/typedarray-reduce.js
index 1fddeca0bc749973a8f1ef68b4c6716cb0ad50b0..ba5d7f7a20dcdd52ce7afb6df1d64faa81ca5e92 100644
--- a/test/mjsunit/es6/typedarray-reduce.js
+++ b/test/mjsunit/es6/typedarray-reduce.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// Flags: --allow-natives-syntax
+
 var typedArrayConstructors = [
   Uint8Array,
   Int8Array,
@@ -247,4 +249,18 @@ for (var constructor of typedArrayConstructors) {
 
   assertEquals(1, constructor.prototype.reduce.length);
   assertEquals(1, constructor.prototype.reduceRight.length);
+
+  // Detached Operation
+  var tmp = {
+    [Symbol.toPrimitive]() {
+      assertUnreachable("Parameter should not be processed when " +
+                        "array.[[ViewedArrayBuffer]] is neutered.");
+      return 0;
+    }
+  };
+
+  var array = new constructor([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
+  %ArrayBufferNeuter(array.buffer);
+  assertThrows(() => array.reduce(sum, tmp), TypeError);
+  assertThrows(() => array.reduceRight(sum, tmp), TypeError);
 }