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

src/builtins/builtins-typedarray.cc

Index: src/builtins/builtins-typedarray.cc
diff --git a/src/builtins/builtins-typedarray.cc b/src/builtins/builtins-typedarray.cc
index 030289ca85db2044dc768bfad055bdb2989192d7..9c6cedb01224a28542d24d1606b835a005609ed4 100644
--- a/src/builtins/builtins-typedarray.cc
+++ b/src/builtins/builtins-typedarray.cc
@@ -17,7 +17,8 @@ namespace internal {
 // ES6 section 22.2.3.1 get %TypedArray%.prototype.buffer
 BUILTIN(TypedArrayPrototypeBuffer) {
   HandleScope scope(isolate);
-  CHECK_RECEIVER(JSTypedArray, typed_array, "get TypedArray.prototype.buffer");
+  CHECK_RECEIVER(JSTypedArray, typed_array,
+                 "get %TypedArray%.prototype.buffer");
   return *typed_array->GetBuffer();
 }
 
@@ -51,8 +52,6 @@ BUILTIN(TypedArrayPrototypeCopyWithin) {
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, array, JSTypedArray::Validate(isolate, args.receiver(), method));
 
-  if (V8_UNLIKELY(array->WasNeutered())) return *array;
-
   int64_t len = array->length_value();
   int64_t to = 0;
   int64_t from = 0;
@@ -116,8 +115,6 @@ BUILTIN(TypedArrayPrototypeFill) {
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, array, JSTypedArray::Validate(isolate, args.receiver(), method));
 
-  if (V8_UNLIKELY(array->WasNeutered())) return *array;
-
   int64_t len = array->length_value();
   int64_t start = 0;
   int64_t end = len;
@@ -263,8 +260,6 @@ BUILTIN(TypedArrayPrototypeReverse) {
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
       isolate, array, JSTypedArray::Validate(isolate, args.receiver(), method));
 
-  if (V8_UNLIKELY(array->WasNeutered())) return *array;
-
   ElementsAccessor* elements = array->GetElementsAccessor();
   elements->Reverse(*array);
   return *array;