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

src/runtime/runtime-typedarray.cc

Index: src/runtime/runtime-typedarray.cc
diff --git a/src/runtime/runtime-typedarray.cc b/src/runtime/runtime-typedarray.cc
index e7e0f34f88fa3a37e32d9a3c962a89f55478467f..e5f6f4d07c421fe4b6714b46c6c36914ad923647 100644
--- a/src/runtime/runtime-typedarray.cc
+++ b/src/runtime/runtime-typedarray.cc
@@ -56,6 +56,12 @@ BUFFER_VIEW_GETTER(TypedArray, Length, length)
 
 #undef BUFFER_VIEW_GETTER
 
+RUNTIME_FUNCTION(Runtime_ArrayBufferViewWasNeutered) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(1, args.length());
+  return isolate->heap()->ToBoolean(JSTypedArray::cast(args[0])->WasNeutered());
+}
+
 RUNTIME_FUNCTION(Runtime_TypedArrayGetBuffer) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
@@ -214,7 +220,6 @@ RUNTIME_FUNCTION(Runtime_IsTypedArray) {
   return isolate->heap()->ToBoolean(args[0]->IsJSTypedArray());
 }
 
-
 RUNTIME_FUNCTION(Runtime_IsSharedTypedArray) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());