ART: Detach libart-disassembler from libart

Some more intrusive changes than I would have liked, as long as
ART logging is different from libbase logging.

Fix up some includes.

Bug: 15436106
Bug: 31338270
Test: m test-art-host
Change-Id: I9fbe4b85b2d74e079a4981f3aec9af63b163a461
diff --git a/runtime/utils.h b/runtime/utils.h
index 2389ce7..958f0a3 100644
--- a/runtime/utils.h
+++ b/runtime/utils.h
@@ -386,6 +386,16 @@
   __builtin___clear_cache(begin, end);
 }
 
+template <typename T>
+constexpr PointerSize ConvertToPointerSize(T any) {
+  if (any == 4 || any == 8) {
+    return static_cast<PointerSize>(any);
+  } else {
+    LOG(FATAL);
+    UNREACHABLE();
+  }
+}
+
 }  // namespace art
 
 #endif  // ART_RUNTIME_UTILS_H_