Implement new Function.prototype.toString and fix CreateDynamicFunction parsing

src/parsing/parse-info.h

Index: src/parsing/parse-info.h
diff --git a/src/parsing/parse-info.h b/src/parsing/parse-info.h
index 2fc3e0e01ba748593a6f50be2e2b733f61f2174f..21d5e0836ddc37f823bbec08efe4e6b82d13c305 100644
--- a/src/parsing/parse-info.h
+++ b/src/parsing/parse-info.h
@@ -149,6 +149,11 @@ class V8_EXPORT_PRIVATE ParseInfo {
   int end_position() const { return end_position_; }
   void set_end_position(int end_position) { end_position_ = end_position; }
 
+  int parameters_end_pos() const { return parameters_end_pos_; }
+  void set_parameters_end_pos(int parameters_end_pos) {
+    parameters_end_pos_ = parameters_end_pos;
+  }
+
   int function_literal_id() const { return function_literal_id_; }
   void set_function_literal_id(int function_literal_id) {
     function_literal_id_ = function_literal_id;
@@ -235,6 +240,7 @@ class V8_EXPORT_PRIVATE ParseInfo {
   int compiler_hints_;
   int start_position_;
   int end_position_;
+  int parameters_end_pos_;
   int function_literal_id_;
 
   // TODO(titzer): Move handles and isolate out of ParseInfo.