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/Compiler.h b/src/compiler/Compiler.h
index 94d20e5..68a38a5 100644
--- a/src/compiler/Compiler.h
+++ b/src/compiler/Compiler.h
@@ -51,6 +51,7 @@
     kSkipLargeMethodOptimization,
     kSafeOptimizations,
     kBBOpt,
+    kPromoteCompilerTemps,
 };
 
 /* Type of allocation for memory tuning */