Refactored the logic for entering the debugger into one abstraction EnterDebu...

src/mirror-delay.js

Index: src/mirror-delay.js
===================================================================
--- src/mirror-delay.js	(revision 384)
+++ src/mirror-delay.js	(working copy)
@@ -1608,7 +1608,7 @@
     // For constructor frames display new followed by the function name.
     result += 'new ';
     result += func.name() ? func.name() : '[anonymous]';
-  } else   if (this.isDebuggerFrame()) {
+  } else if (this.isDebuggerFrame()) {
     result += '[debugger]';
   } else {
     // If the receiver has a className which is 'global' don't display it.