[js] Stub nqp::settypefinalize.

Author: pmurias

src/vm/js/QAST/Compiler.nqp

@@ -919,6 +919,8 @@ class QAST::OperationsJS {
 
     });
 
+    add_simple_op('settypefinalize', $T_VOID, [$T_OBJ, $T_INT]);
+
     # TODO - implement and bechmark different ways of preventing the try/catch from murdering performance 
     add_op('handle', sub ($comp, $node, :$want, :$cps) {
         # TODO CPS