[debug] remove debug command processor from regress tests.

test/mjsunit/regress/regress-1639-2.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 11 matching lines @@
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Flags: --expose-debug-as debug
 // Get the Debug object exposed from the debug context global object.
 Debug = debug.Debug
 var exception = false;
-
-function sendCommand(state, cmd) {
-  // Get the debug command processor in paused state.
-  var dcp = state.debugCommandProcessor(false);
-  var request = JSON.stringify(cmd);
-  var response = dcp.processDebugJSONRequest(request);
-}
-
 var state = 0;
 
 function listener(event, exec_state, event_data, data) {
   try {
     if (event == Debug.DebugEvent.Break) {
       var line = event_data.sourceLineText();
       print('break: ' + line);
-      print('event data: ' + event_data.toJSONProtocol());
-      print();
       assertEquals('// BREAK', line.substr(-8),
                    "should not break outside evaluate");
 
       switch (state) {
       case 0:
         state = 1;
         // While in the debugger and stepping through a set of instructions
         // executed in the evaluate command, the stepping must stop at the end
         // of the said set of instructions and not step further into native
         // debugger code.
-        sendCommand(exec_state, {
-          seq : 0,
-          type : "request",
-          command : "evaluate",
-          arguments : {
-            'expression' : 'print("A"); debugger; print("B"); // BREAK',
-            'global' : true
-          }
-        });
+        exec_state.frame(0).evaluate(
+            "print('A');\n" +
+            "debugger;   // BREAK\n" +
+            "print('B'); // BREAK");
         break;
       case 1:
-        sendCommand(exec_state, {
-          seq : 0,
-          type : "request",
-          command : "continue",
-          arguments : {
-            stepaction : "next"
-          }
-        });
+        exec_state.prepareStep(Debug.StepAction.StepNext);
         break;
       }
     }
   } catch (e) {
     print(e);
     exception = true;
   }
 }
 
 // Add the debug event listener.
 Debug.setListener(listener);
 
 function a() {
 } // BREAK
 
 // Set a break point and call to invoke the debug event listener.
 Debug.setBreakPoint(a, 0, 0);
 a();
 assertFalse(exception);