[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 955af4e8ea0977cbd8f854c13e22838bf893a6c7..2f1040e38a873f5afa4e16f86ff118740541d5e2 100644
--- a/src/runtime/runtime-typedarray.cc
+++ b/src/runtime/runtime-typedarray.cc
@@ -360,6 +360,15 @@ RUNTIME_FUNCTION(Runtime_IsTypedArray) {
   return isolate->heap()->ToBoolean(args[0]->IsJSTypedArray());
 }
 
+RUNTIME_FUNCTION(Runtime_ValidateTypedArray) {
+  HandleScope scope(isolate);
+  DCHECK_EQ(2, args.length());
+  CONVERT_ARG_HANDLE_CHECKED(Object, target_obj, 0);
+  CONVERT_ARG_HANDLE_CHECKED(String, method, 1);
+  RETURN_RESULT_OR_FAILURE(
+      isolate,
+      JSTypedArray::Validate(isolate, target_obj, method->ToCString().get()));
+}
 
 RUNTIME_FUNCTION(Runtime_IsSharedTypedArray) {
   HandleScope scope(isolate);