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/runtime/mirror/array-inl.h b/runtime/mirror/array-inl.h
index 04c80c5..be03f04 100644
--- a/runtime/mirror/array-inl.h
+++ b/runtime/mirror/array-inl.h
@@ -24,7 +24,7 @@
 #include "base/bit_utils.h"
 #include "base/casts.h"
 #include "base/logging.h"
-#include "class-inl.h"
+#include "class.h"
 #include "gc/heap-inl.h"
 #include "obj_ptr-inl.h"
 #include "thread.h"