[debugger] tuned StepNext and StepOut at return position

src/debug/debug.h

Index: src/debug/debug.h
diff --git a/src/debug/debug.h b/src/debug/debug.h
index 34b4fe2c2cf66cac9cb52de519616df1abf2009e..e5a61d99933e5f3bde44f8fe50ac9234cee8ff7e 100644
--- a/src/debug/debug.h
+++ b/src/debug/debug.h
@@ -490,7 +490,8 @@ class Debug {
   // Clear all code from instrumentation.
   void ClearAllBreakPoints();
   // Instrument a function with one-shots.
-  void FloodWithOneShot(Handle<SharedFunctionInfo> function);
+  void FloodWithOneShot(Handle<SharedFunctionInfo> function,
+                        bool returns_only = false);
   // Clear all one-shot instrumentations, but restore break points.
   void ClearOneShot();
 
@@ -565,6 +566,12 @@ class Debug {
     // Step action for last step performed.
     StepAction last_step_action_;
 
+    // If set then this function will be ignored in PrepareStepIn call.

[dgozman, 2017/03/21 23:33:21]

If set, next PrepareStepIn will ignore this function until stepped into another
function, at which point this will be cleared.

[kozy, 2017/03/22 17:19:53]

Done.

+    Object* ignore_step_into_function_;
+
+    // If set then we need to repeat StepOut action at return.
+    bool fast_forward_to_return_;
+
     // Source statement position from last step next action.
     int last_statement_position_;