Add an explicit push-argument instruction to the IL.

vm/flow_graph_compiler.cc

Index: vm/flow_graph_compiler.cc
===================================================================
--- vm/flow_graph_compiler.cc	(revision 9930)
+++ vm/flow_graph_compiler.cc	(working copy)
@@ -599,7 +599,9 @@
       locs->set_in(i, Location::RegisterLocation(reg));
     }
 
-    Pop(reg, instr->InputAt(i));
+    // Inputs are consumed from the simulated frame. In case of a call argument
+    // we leave it until the call instruction.
+    if (!instr->IsPushArgument()) Pop(reg, instr->InputAt(i));
   }
 
   // If this instruction is call spill everything that was not consumed by