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/interpreter/interpreter_common.cc b/runtime/interpreter/interpreter_common.cc
index 8978bfd..326f5c9 100644
--- a/runtime/interpreter/interpreter_common.cc
+++ b/runtime/interpreter/interpreter_common.cc
@@ -28,7 +28,7 @@
 #include "mirror/array-inl.h"
 #include "mirror/class.h"
 #include "mirror/emulated_stack_frame.h"
-#include "mirror/method_handle_impl.h"
+#include "mirror/method_handle_impl-inl.h"
 #include "reflection.h"
 #include "reflection-inl.h"
 #include "stack.h"
diff --git a/runtime/interpreter/unstarted_runtime_test.cc b/runtime/interpreter/unstarted_runtime_test.cc
index 56e261c..c314f3c 100644
--- a/runtime/interpreter/unstarted_runtime_test.cc
+++ b/runtime/interpreter/unstarted_runtime_test.cc
@@ -1341,7 +1341,8 @@
   ASSERT_TRUE(cons != nullptr);
 
   Handle<mirror::ObjectArray<mirror::Object>> args = hs.NewHandle(
-      class_linker->AllocObjectArray<mirror::Object>(self, 1));
+      mirror::ObjectArray<mirror::Object>::Alloc(
+          self, class_linker_->GetClassRoot(ClassLinker::ClassRoot::kObjectArrayClass), 1));
   ASSERT_TRUE(args != nullptr);
   args->Set(0, input.Get());