Move some remaining dex utilities

There were several utilities related to building/walking/testing dex
files that were not in libdexfile.  This change consolidates these.

Bug: 22322814
Test: make -j 50 test-art-host
Change-Id: Id76e9179d03b8ec7d67f7e0f267121f54f0ec2e0
diff --git a/compiler/optimizing/ssa_builder.cc b/compiler/optimizing/ssa_builder.cc
index cb38476..dd54468 100644
--- a/compiler/optimizing/ssa_builder.cc
+++ b/compiler/optimizing/ssa_builder.cc
@@ -16,8 +16,8 @@
 
 #include "ssa_builder.h"
 
-#include "bytecode_utils.h"
 #include "data_type-inl.h"
+#include "dex/bytecode_utils.h"
 #include "mirror/class-inl.h"
 #include "nodes.h"
 #include "reference_type_propagation.h"