Untemplated preparser.h and made it depend on virtual types.

test/cctest/test-parsing.cc

 // Copyright 2006-2009 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 245 matching lines @@
       "var x = new new Function('this.x = 42');",
       NULL
   };
 
   for (int i = 0; programs[i]; i++) {
     const char* program = programs[i];
     unibrow::Utf8InputBuffer<256> stream(program, strlen(program));
     i::CompleteParserRecorder log;
     i::V8JavaScriptScanner scanner;
     scanner.Initialize(i::Handle<i::String>::null(), &stream);
-    v8::preparser::PreParser<i::V8JavaScriptScanner,
-                             i::CompleteParserRecorder> preparser;
+    v8::preparser::PreParser preparser;
     bool result = preparser.PreParseProgram(&scanner, &log, true);
     CHECK(result);
     i::ScriptDataImpl data(log.ExtractData());
     CHECK(!data.has_error());
   }
 }
 
 
 TEST(RegressChromium62639) {
   int marker;
@@ skipping 43 matching lines @@
   CHECK(!entry1.is_valid());
 
   int second_function = strstr(program + first_lbrace, "function") - program;
   int second_lbrace = second_function + strlen("function () ");
   CHECK_EQ('{', program[second_lbrace]);
   i::FunctionEntry entry2 = data->GetFunctionEntry(second_lbrace);
   CHECK(entry2.is_valid());
   CHECK_EQ('}', program[entry2.end_pos() - 1]);
   delete data;
 }