[debugger] Remove obsolete stepping modes.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1479843002

Cr-Commit-Position: refs/heads/master@{#32343}

src/debug/debug.cc

@@ -964,7 +964,7 @@ void Debug::PrepareStep(StepAction step_action,
     return;
   }
 
-  if (step_action != StepNext && step_action != StepMin) {
+  if (step_action != StepNext) {
     // If there's restarter frame on top of the stack, just get the pointer
     // to function which is going to be restarted.
     if (thread_local_.restarter_frame_function_pointer_ != NULL) {

src/debug/debug.h

@@ -37,10 +37,7 @@ enum StepAction : int8_t {
   StepNext = 1,   // Step to the next statement in the current function.
   StepIn = 2,     // Step into new functions invoked or the next statement
                   // in the current function.
-  StepMin = 3,    // Perform a minimum step in the current function.
-  StepInMin = 4,  // Step into new functions invoked or perform a minimum step
-                  // in the current function.
-  StepFrame = 5   // Step into a new frame or return to previous frame.
+  StepFrame = 3   // Step into a new frame or return to previous frame.
 };
 
 

src/debug/debug.js

@@ -62,9 +62,7 @@ Debug.ExceptionBreak = { Caught : 0,
 Debug.StepAction = { StepOut: 0,
                      StepNext: 1,
                      StepIn: 2,
-                     StepMin: 3,
-                     StepInMin: 4,
-                     StepFrame: 5 };
+                     StepFrame: 3 };
 
 // The different types of scripts matching enum ScriptType in objects.h.
 Debug.ScriptType = { Native: 0,
@@ -1479,8 +1477,6 @@ DebugCommandProcessor.prototype.continueRequest_ = function(request, response) {
     if (stepaction) {
       if (stepaction == 'in') {
         action = Debug.StepAction.StepIn;
-      } else if (stepaction == 'min') {
-        action = Debug.StepAction.StepMin;
       } else if (stepaction == 'next') {
         action = Debug.StepAction.StepNext;
       } else if (stepaction == 'out') {

src/runtime/runtime-debug.cc

@@ -1232,13 +1232,12 @@ RUNTIME_FUNCTION(Runtime_PrepareStep) {
   // Get the step action and check validity.
   StepAction step_action = static_cast<StepAction>(NumberToInt32(args[1]));
   if (step_action != StepIn && step_action != StepNext &&
-      step_action != StepOut && step_action != StepInMin &&
-      step_action != StepMin && step_action != StepFrame) {
+      step_action != StepOut && step_action != StepFrame) {
     return isolate->Throw(isolate->heap()->illegal_argument_string());
   }
 
   if (frame_id != StackFrame::NO_ID && step_action != StepNext &&
-      step_action != StepMin && step_action != StepOut) {
+      step_action != StepOut) {
     return isolate->ThrowIllegalOperation();
   }
 

test/mjsunit/debug-continue.js

@@ -78,7 +78,6 @@ function listener(event, exec_state, event_data, data) {
 
     // Test some legal continue requests.
     testArguments(exec_state, '{"stepaction":"in"}', true);
-    testArguments(exec_state, '{"stepaction":"min"}', true);
     testArguments(exec_state, '{"stepaction":"next"}', true);
     testArguments(exec_state, '{"stepaction":"out"}', true);
     testArguments(exec_state, '{"stepcount":1}', true);

test/mjsunit/debug-stepout-scope-part1.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part2.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part3.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part4.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part5.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part6.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part7.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }
 

test/mjsunit/debug-stepout-scope-part8.js

@@ -44,9 +44,7 @@ function listener(event, exec_state, event_data, data) {
     }
 
     // Do steps until we reach the global scope again.
-    if (true) {
-      exec_state.prepareStep(Debug.StepAction.StepInMin, 1);
-    }
+    exec_state.prepareStep(Debug.StepAction.StepIn, 1);
   }
 }