Support for promoting Method* and compiler temps

This CL completes the support for allowing compiler-generated
data to be treated as a Dalvik register and become subject to
the normal register promotion and live temp tracking machinery.

Also:
   o Removes some vestigal and useless Method* loads from
     range argument setup.
   o Changes the Method* pseudo vReg number from -1 to -2 to
     avoid a conflict with the 0xffff marker in the register map.
   o Removes some experimental code for CSE at the basic block
     level.

Change-Id: I112a8bbe20f95a8d789f63908c84e5fa167c74ac
diff --git a/src/compiler/codegen/CodegenFactory.cc b/src/compiler/codegen/CodegenFactory.cc
index 5f525a7..e1df1a5 100644
--- a/src/compiler/codegen/CodegenFactory.cc
+++ b/src/compiler/codegen/CodegenFactory.cc
@@ -302,5 +302,10 @@
     return loadValue(cUnit, cUnit->regLocation[cUnit->methodSReg], kCoreReg);
 }
 
+bool methodStarInReg(CompilationUnit* cUnit)
+{
+     return (cUnit->regLocation[cUnit->methodSReg].location == kLocPhysReg);
+}
+
 
 }  // namespace art