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

runtime/vm/compiler.h

 // Copyright (c) 2012, 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.
 
 #ifndef VM_COMPILER_H_
 #define VM_COMPILER_H_
 
 #include "vm/allocation.h"
 #include "vm/growable_array.h"
 #include "vm/runtime_entry.h"
@@ skipping 82 matching lines @@
   // Extracts function and field symbols from the class and populates
   // the class.
   //
   // Returns Error::null() if there is no compilation error.
   static RawError* CompileClass(const Class& cls);
 
   // Generates code for given function and sets its code field.
   //
   // Returns Error::null() if there is no compilation error.
   static RawError* CompileFunction(Thread* thread, const Function& function);
+  static RawError* ParseFunction(Thread* thread, const Function& function);
 
   // Generates unoptimized code if not present, current code is unchanged.
   static RawError* EnsureUnoptimizedCode(Thread* thread,
                                          const Function& function);
 
   // Generates optimized code for function.
   //
   // Returns Error::null() if there is no compilation error.
   // If 'result_code' is not NULL, then the generated code is returned but
   // not installed.
@@ skipping 23 matching lines @@
   static RawObject* EvaluateStaticInitializer(const Field& field);
 
   // Generates local var descriptors and sets it in 'code'. Do not call if the
   // local var descriptor already exists.
   static void ComputeLocalVarDescriptors(const Code& code);
 
   // Eagerly compiles all functions in a class.
   //
   // Returns Error::null() if there is no compilation error.
   static RawError* CompileAllFunctions(const Class& cls);
+  static RawError* ParseAllFunctions(const Class& cls);
 
   // Notify the compiler that background (optimized) compilation has failed
   // because the mutator thread changed the state (e.g., deoptimization,
   // deferred loading). The background compilation may retry to compile
   // the same function later.
   static void AbortBackgroundCompilation(intptr_t deopt_id, const char* msg);
 };
 
 
 // Class to run optimizing compilation in a background thread.
@@ skipping 37 matching lines @@
   Monitor* done_monitor_;   // Notify/wait that the thread is done.
 
   BackgroundCompilationQueue* function_queue_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(BackgroundCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_COMPILER_H_