Separate out more of LLVM build. Move verifier.

Move the verifier to its own directory and break out major components.
Avoid compiling unused files as part of the LLVM build, increase the use
of unimplemented for LLVM.

Change-Id: Icd3b1708363fb70ae99417d06ef8669d60446533
diff --git a/test/ReferenceMap/stack_walk_refmap_jni.cc b/test/ReferenceMap/stack_walk_refmap_jni.cc
index 0370ead..20be7a1 100644
--- a/test/ReferenceMap/stack_walk_refmap_jni.cc
+++ b/test/ReferenceMap/stack_walk_refmap_jni.cc
@@ -18,11 +18,12 @@
 
 #include "UniquePtr.h"
 #include "class_linker.h"
-#include "dex_verifier.h"
 #include "object.h"
 #include "object_utils.h"
 #include "thread.h"
 #include "jni.h"
+#include "verifier/gc_map.h"
+#include "verifier/method_verifier.h"
 
 namespace art {
 
@@ -64,7 +65,7 @@
     // Enable this to dump reference map to LOG(INFO)
     if (false) {
       ScopedThreadStateChange tsc(Thread::Current(), kRunnable);
-      art::verifier::DexVerifier::VerifyMethodAndDump(m);
+      art::verifier::MethodVerifier::VerifyMethodAndDump(m);
     }
     const uint8_t* ref_bitmap = NULL;
     MethodHelper mh(m);