Add new files and data structures for the new register allocator.

vm/il_printer.cc

Index: vm/il_printer.cc
===================================================================
--- vm/il_printer.cc	(revision 9014)
+++ vm/il_printer.cc	(working copy)
@@ -412,6 +412,11 @@
 }
 
 
+void ParallelMoveInstr::PrintTo(BufferFormatter* f) const {
+  UNIMPLEMENTED();
+}
+
+
 void FlowGraphVisualizer::Print(const char* format, ...) {
   char str[120];
   BufferFormatter f(str, sizeof(str));
@@ -639,4 +644,10 @@
 }
 
 
+void ParallelMoveInstr::PrintToVisualizer(BufferFormatter* f) const {
+  UNIMPLEMENTED();
+}
+
+
+
 }  // namespace dart