Final CL to enable register allocation on x86.

This CL implements:
1) Resolution after allocation: connecting the locations
   allocated to an interval within a block and between blocks.
2) Handling of fixed registers: some instructions require
   inputs/output to be at a specific location, and the allocator
   needs to deal with them in a special way.
3) ParallelMoveResolver::EmitNativeCode for x86.

Change-Id: I0da6bd7eb66877987148b87c3be6a983b4e3f858
diff --git a/compiler/optimizing/graph_visualizer.h b/compiler/optimizing/graph_visualizer.h
index 2638cf5..7cd74e9 100644
--- a/compiler/optimizing/graph_visualizer.h
+++ b/compiler/optimizing/graph_visualizer.h
@@ -25,6 +25,9 @@
 class DexCompilationUnit;
 class HGraph;
 
+static const char* kLivenessPassName = "liveness";
+static const char* kRegisterAllocatorPassName = "register";
+
 /**
  * If enabled, emits compilation information suitable for the c1visualizer tool
  * and IRHydra.