Debugger: require debugger to be active when dealing with breaks.

test/mjsunit/regress/regress-1586.js

Index: test/mjsunit/regress/regress-1586.js
diff --git a/test/mjsunit/regress/regress-1586.js b/test/mjsunit/regress/regress-1586.js
index b15e2f2432d7ae9b844749201228a25d4049889f..9c805a7a4b80e5a6c0161f85a8462a65bdc040bf 100644
--- a/test/mjsunit/regress/regress-1586.js
+++ b/test/mjsunit/regress/regress-1586.js
@@ -43,8 +43,6 @@ function f() {
 
 // Get the Debug object exposed from the debug context global object.
 Debug = debug.Debug
-// Set breakpoint on line 6.
-var bp = Debug.setBreakPoint(f, 6);
 
 function listener(event, exec_state, event_data, data) {
   if (event == Debug.DebugEvent.Break) {
@@ -54,6 +52,10 @@ function listener(event, exec_state, event_data, data) {
 
 // Add the debug event listener.
 Debug.setListener(listener);
+
+//Set breakpoint on line 6.
+var bp = Debug.setBreakPoint(f, 6);
+
 result = -1;
 f();
 assertEquals(1, result);