Enable the rest of branch fusing

I mistakenly left most of the branch fusing cases disabled in
the previous CL.  This CL turns them all on, along with a fix
for the bug I was chasing while disabling them in the first
place.

Change-Id: Ia60f7fe5394a5da08ed75bbff39b47ae9497a61c
diff --git a/src/compiler/codegen/MethodCodegenDriver.cc b/src/compiler/codegen/MethodCodegenDriver.cc
index 1dc11da..fb9bdc9 100644
--- a/src/compiler/codegen/MethodCodegenDriver.cc
+++ b/src/compiler/codegen/MethodCodegenDriver.cc
@@ -737,9 +737,6 @@
 
 const char* extendedMIROpNames[kMirOpLast - kMirOpFirst] = {
     "kMirOpPhi",
-    "kMirOpNullNRangeUpCheck",
-    "kMirOpNullNRangeDownCheck",
-    "kMirOpLowerBound",
     "kMirOpCopy",
     "kMirFusedCmplFloat",
     "kMirFusedCmpgFloat",
@@ -747,6 +744,9 @@
     "kMirFusedCmpgDouble",
     "kMirFusedCmpLong",
     "kMirNop",
+    "kMirOpNullNRangeUpCheck",
+    "kMirOpNullNRangeDownCheck",
+    "kMirOpLowerBound",
 };
 
 /* Extended MIR instructions like PHI */