ART: SHARED_REQUIRES to REQUIRES_SHARED

This coincides with the actual attribute name and upstream usage.
Preparation for deferring to libbase.

Test: m
Test: m test-art-host
Change-Id: Ia8986b5dfd926ba772bf00b0a35eaf83596d8518
diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index 2808e1b..8f37236 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -2242,7 +2242,7 @@
 }
 
 static void CheckAgainstUpperBound(ReferenceTypeInfo rti, ReferenceTypeInfo upper_bound_rti)
-    SHARED_REQUIRES(Locks::mutator_lock_) {
+    REQUIRES_SHARED(Locks::mutator_lock_) {
   if (rti.IsValid()) {
     DCHECK(upper_bound_rti.IsSupertypeOf(rti))
         << " upper_bound_rti: " << upper_bound_rti