Speed up long-running test cases.

test/mjsunit/debug-step-4-in-frame.js

 // Copyright 2008 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 19 matching lines @@
 Debug = debug.Debug
 
 // Tests how debugger can step over not necessarily in the top frame.
 
 // Simple 3 functions, that protocol their execution state in global
 // variable state.
 var state;
 
 function f() {
   var a = 1978;
-  for (state[2] = 0; state[2] < 5; state[2]++) {
+  for (state[2] = 0; state[2] < 3; state[2]++) {
     void String(a);
   }
 }
 function g() {
-  for (state[1] = 0; state[1] < 5; state[1]++) {
+  for (state[1] = 0; state[1] < 3; state[1]++) {
     f();
   }
 }
 function h() {
   state = [-1, -1, -1];
-  for (state[0] = 0; state[0] < 5; state[0]++) {
+  for (state[0] = 0; state[0] < 3; state[0]++) {
     g();
   }
 }
 
 function TestCase(frame_index, step_count, expected_final_state) {
   print("Test case, parameters " + frame_index + "/" + step_count);
 
   var listener_exception = null;
   var state_snapshot;
   var listener_state;
@@ skipping 54 matching lines @@
 TestCase(undefined, 8, "0,0,3");
 
 // Stepping in the frame #0 (should be exactly the same as above).
 TestCase(0, 0, "0,0,-1");
 TestCase(0, 1, "0,0,-1");
 TestCase(0, 2, "0,0,0");
 TestCase(0, 5, "0,0,1");
 TestCase(0, 8, "0,0,3");
 
 // Stepping in the frame #1.
-TestCase(1, 0, "0,0,5");
-TestCase(1, 3, "0,1,5");
-TestCase(1, 8, "0,4,5");
+TestCase(1, 0, "0,0,3");
+TestCase(1, 3, "0,1,3");
+TestCase(1, 7, "0,3,3");
 
 // Stepping in the frame #2.
-TestCase(2, 3, "1,5,5");
-TestCase(2, 8, "4,5,5");
+TestCase(2, 3, "1,3,3");
+TestCase(2, 7, "3,3,3");