Move to newer clang annotations

Also enable -Wthread-safety-negative.

Changes:
Switch to capabilities and negative capabilities.

Future work:
Use capabilities to implement uninterruptible annotations to work
with AssertNoThreadSuspension.

Bug: 20072211

Change-Id: I42fcbe0300d98a831c89d1eff3ecd5a7e99ebf33
diff --git a/runtime/well_known_classes.h b/runtime/well_known_classes.h
index 66b9abe..6dd8168 100644
--- a/runtime/well_known_classes.h
+++ b/runtime/well_known_classes.h
@@ -38,7 +38,7 @@
   static jmethodID StringInitToStringFactoryMethodID(jmethodID string_init);
 
   static mirror::Class* ToClass(jclass global_jclass)
-      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
+      SHARED_REQUIRES(Locks::mutator_lock_);
 
   static jclass com_android_dex_Dex;
   static jclass dalvik_system_DexFile;