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

runtime/vm/ast_printer.h

Index: runtime/vm/ast_printer.h
diff --git a/runtime/vm/ast_printer.h b/runtime/vm/ast_printer.h
index 7c43ef69356d6ef5328baee79ace529be620c2a5..b5ee0bdaae348ef06102ec332826e2dffd3394d2 100644
--- a/runtime/vm/ast_printer.h
+++ b/runtime/vm/ast_printer.h
@@ -12,12 +12,16 @@ namespace dart {
 
 // Forward declaration.
 class ParsedFunction;
+class Log;
 
 class AstPrinter : public AstNodeVisitor {
  public:
-  static void PrintNode(AstNode* node);
-  static void PrintFunctionScope(const ParsedFunction& parsed_function);
-  static void PrintFunctionNodes(const ParsedFunction& parsed_function);
+  explicit AstPrinter(bool log = true);
+  ~AstPrinter();
+
+  void PrintNode(AstNode* node);
+  void PrintFunctionScope(const ParsedFunction& parsed_function);
+  void PrintFunctionNodes(const ParsedFunction& parsed_function);
 
 #define DECLARE_VISITOR_FUNCTION(BaseName)                                     \
   virtual void Visit##BaseName##Node(BaseName##Node* node);
@@ -26,23 +30,22 @@ class AstPrinter : public AstNodeVisitor {
 #undef DECLARE_VISITOR_FUNCTION
 
  private:
-  AstPrinter();
-  ~AstPrinter();
-
   static const int kScopeIndent = 2;
 
-  static void PrintLocalScopeVariable(const LocalScope* scope,
-                                      LocalVariable* var,
-                                      int indent = 0);
-  static void PrintLocalScope(const LocalScope* scope,
-                              int variable_index,
-                              int indent = 0);
+  void IndentN(int count);
+  void PrintLocalScopeVariable(const LocalScope* scope,
+                               LocalVariable* var,
+                               int indent = 0);
+  void PrintLocalScope(const LocalScope* scope,
+                       int variable_index,
+                       int indent = 0);
 
   void VisitGenericAstNode(AstNode* node);
   void VisitGenericLocalNode(AstNode* node, const LocalVariable& local);
   void VisitGenericFieldNode(AstNode* node, const Field& field);
 
   intptr_t indent_;
+  Log* logger_;
 
   DISALLOW_COPY_AND_ASSIGN(AstPrinter);
 };