A64: Remove a couple of already addressed TODOs.

src/a64/code-stubs-a64.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1866 matching lines @@
   // Invoke the function by calling through the JS entry trampoline builtin.
   // Notice that we cannot store a reference to the trampoline code directly in
   // this stub, because runtime stubs are not traversed when doing GC.
 
   // Expected registers by Builtins::JSEntryTrampoline
   // x0: code entry.
   // x1: function.
   // x2: receiver.
   // x3: argc.
   // x4: argv.
-  // TODO(jbramley): The latest ARM code checks is_construct and conditionally
-  // uses construct_entry. We probably need to do the same here.
   ExternalReference entry(is_construct ? Builtins::kJSConstructEntryTrampoline
                                        : Builtins::kJSEntryTrampoline,
                           isolate);
   __ Mov(x10, Operand(entry));
 
   // Call the JSEntryTrampoline.
   __ Ldr(x11, MemOperand(x10));  // Dereference the address.
   __ Add(x12, x11, Code::kHeaderSize - kHeapObjectTag);
   __ Blr(x12);
 
@@ skipping 3900 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64