Fix handling of recompiling code for optimized and inlined functions

test/mjsunit/debug-step-3.js

 // Copyright 2011 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 64 matching lines @@
 //assertEquals(4, step_count);
 Debug.clearBreakPoint(bp);
 
 // Set a breakpoint on the first var statement (line 1).
 set_bp = false;
 bp = Debug.setBreakPoint(f, 3);
 
 // Step through the function ensuring that the var statements are hit as well.
 prepare_step_test();
 f();
-// TODO(1782): Fix issue to bring back this assert.
-//assertEquals(4, step_count);
+assertEquals(4, step_count);
 
 // Clear the breakpoint and check that no stepping happens.
 Debug.clearBreakPoint(bp);
 prepare_step_test();
 f();
 assertEquals(0, step_count);
 
 // Get rid of the debug event listener.
 Debug.setListener(null);