Add --parse-all option in order to benchmark and measure the scanner/parser performance.

runtime/vm/parser_test.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 #include "vm/ast_printer.h"
 #include "vm/class_finalizer.h"
 #include "vm/debugger.h"
 #include "vm/longjump.h"
 #include "vm/object.h"
@@ skipping 22 matching lines @@
     EXPECT(!cls.IsNull());
     Function& function =
       Function::ZoneHandle(cls.LookupStaticFunction(funcname));
     EXPECT(!function.IsNull());
     ParsedFunction* parsed_function =
         new ParsedFunction(Thread::Current(), function);
     Parser::ParseFunction(parsed_function);
     EXPECT(parsed_function->node_sequence() != NULL);
     printf("Class %s function %s:\n", cname, fname);
     if (FLAG_support_ast_printer) {
-      AstPrinter::PrintFunctionNodes(*parsed_function);
+      AstPrinter ast_printer;
+      ast_printer.PrintFunctionNodes(*parsed_function);
     } else {
       OS::Print("AST printer not supported.");
     }
     retval = true;
   } else {
     retval = false;
   }
   EXPECT(retval);
 }
 
@@ skipping 516 matching lines @@
       "   name=:current_context_var\n"
       " 1 ContextLevel  level=1   scope=2   begin=3   end=79\n"
       " 2 ContextVar    level=1   begin=9   end=79  name=x\n"
       " 3 StackVar      scope=2   begin=11  end=79  name=b\n",
       CaptureVarsAtLine(lib, "a", 10));
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart