Remove multiple GC calls and replace GCController.collect calls with GCController.collectAll

LayoutTests/fast/js/script-tests/with-scope-gc.js

 description(
 'Tests to make sure that dynamic scope objects are correctly protected from GC.  To pass we need to not crash.'
 );
 
 function gc()
 {
     if (this.GCController)
-        GCController.collect();
+        GCController.collectAll();
     else
         for (var i = 0; i < 10000; ++i) // Allocate a sufficient number of objects to force a GC.
             ({});
 }
 
 (function() {
     try {
         // Immediate value for scope
         with(1) { gc(); a; }
     } catch(e) {
@@ skipping 19 matching lines @@
         // Test catch blocks for the heck of it
         try {
             throw 1;
         } catch(e) {
             gc();
             b;
         }
     } catch (e) {
     }
 })();