Fix image size regression

The new basic block collapse pass marks the eliminated block as
kDead.  On the Quick side, we skip code generation for these blocks - but
neglected to do so for the non-Quick build.  The result: lots of
extra useless unreachable code got generated - hence the image size
bloat.

Fixed, and good news is that we're now seeing the roughly the same
decrease in image size that showed up in the Quick build.

Change-Id: Ie8038cb8058020eefaae1085362a2f8345895284
diff --git a/src/compiler/codegen/MethodCodegenDriver.cc b/src/compiler/codegen/MethodCodegenDriver.cc
index e76834d..606a1ed 100644
--- a/src/compiler/codegen/MethodCodegenDriver.cc
+++ b/src/compiler/codegen/MethodCodegenDriver.cc
@@ -866,6 +866,7 @@
 /* Handle the content in each basic block */
 bool methodBlockCodeGen(CompilationUnit* cUnit, BasicBlock* bb)
 {
+  if (bb->blockType == kDead) return false;
   MIR* mir;
   LIR* labelList = cUnit->blockLabelList;
   int blockId = bb->id;