Clean up some random TODO(titzer)s and spelling mistakes.

test/cctest/test-cpu-profiler.cc

 // Copyright 2010 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 586 matching lines @@
 // Check that the profile tree for the script above will look like the
 // following:
 //
 // [Top down]:
 //  1062     0  (root) [-1]
 //  1054     0    start [-1]
 //  1054     1      foo [-1]
 //     2     2    (program) [-1]
 //     6     6    (garbage collector) [-1]
 //
-// The test checks no FP ranges are present in a deoptimized funcion.
+// The test checks no FP ranges are present in a deoptimized function.
 // If 'foo' has no ranges the samples falling into the prologue will miss the
 // 'start' function on the stack, so 'foo' will be attached to the (root).
 TEST(HotDeoptNoFrameEntry) {
   i::FLAG_allow_natives_syntax = true;
   LocalContext env;
   v8::HandleScope scope(env->GetIsolate());
 
   CompileRun(hot_deopt_no_frame_entry_test_source);
   v8::Local<v8::Function> function = GetFunction(env.local(), "start");
 
@@ skipping 1349 matching lines @@
   iprofile->Print();
   v8::CpuProfile* profile = reinterpret_cast<v8::CpuProfile*>(iprofile);
 
   const char* branch[] = {"", "test"};
   const ProfileNode* itest_node =
       GetSimpleBranch(env, profile, branch, arraysize(branch));
   CHECK_EQ(0U, itest_node->deopt_infos().size());
 
   iprofiler->DeleteProfile(iprofile);
 }