Heap::AllocateStringFromOneByte() and major part of its callers handlified.

test/cctest/test-func-name-inference.cc

 // Copyright 2011 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 52 matching lines @@
   } else {
     shared_function =
         Handle<SharedFunctionInfo>(JSFunction::cast(*obj)->shared());
   }
   Handle<Script> i_script(Script::cast(shared_function->script()));
   CHECK(i_script->source()->IsString());
   Handle<String> script_src(String::cast(i_script->source()));
 
   // Find the position of a given func source substring in the source.
   Handle<String> func_pos_str =
-      factory->NewStringFromAscii(CStrVector(func_pos_src));
+      factory->NewStringFromAsciiChecked(func_pos_src);
   int func_pos = Runtime::StringMatch(isolate,
                                       script_src,
                                       func_pos_str,
                                       0);
   CHECK_NE(0, func_pos);
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // Obtain SharedFunctionInfo for the function.
   isolate->debug()->PrepareForBreakPoints();
   Object* shared_func_info_ptr =
@@ skipping 415 matching lines @@
       "  };\n"
       "  var foo = 10;\n"
       "  function f() {\n"
       "    return wrapCode();\n"
       "  }\n"
       "  this.ref = f;\n"
       "})()");
   script->Run();
   CheckFunctionName(script, "return 2012", "");
 }