ART: Clean up art_method.h

Clean up the header. Fix up other headers including the -inl file,
in an effort to prune the include graph. Fix broken transitive
includes by making includes explicit. Introduce new -inl files
for method handles and reference visiting.

Test: source build/envsetup.sh && lunch aosp_angler-userdebug && mmma art
Test: source build/envsetup.sh && lunch aosp_mips64-userdebug && mmma art
Change-Id: I8f60f1160c2a702fdf3598149dae38f6fa6bc851
diff --git a/patchoat/patchoat.cc b/patchoat/patchoat.cc
index 0c2717f..fbb0978 100644
--- a/patchoat/patchoat.cc
+++ b/patchoat/patchoat.cc
@@ -42,6 +42,7 @@
 #include "mirror/dex_cache.h"
 #include "mirror/executable.h"
 #include "mirror/object-inl.h"
+#include "mirror/object-refvisitor-inl.h"
 #include "mirror/method.h"
 #include "mirror/reference.h"
 #include "noop_compiler_callbacks.h"