[typedarrays] Implement %TypedArray%.prototype.lastIndexOf in C++

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 966f227457c7b6886080ecdf4a97f5eeff635310..bf1a693ac15e96e3b4441c7337b3459d42738b39 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -2619,6 +2619,8 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
                           Builtins::kTypedArrayPrototypeIncludes, 1, false);
     SimpleInstallFunction(prototype, "indexOf",
                           Builtins::kTypedArrayPrototypeIndexOf, 1, false);
+    SimpleInstallFunction(prototype, "lastIndexOf",
+                          Builtins::kTypedArrayPrototypeLastIndexOf, 1, false);
   }
 
   {  // -- T y p e d A r r a y s