Added CheckSuspend and UpdateDebugger to interpreter loop.

Moved CheckSuspend so that the code doesn't need to be repeated in LLVM
as well.

Change-Id: I1073f82352593bf0d5f99b28d382e4687f3a0d90
diff --git a/src/runtime_support.h b/src/runtime_support.h
index 5a5cdcd..e54e05b 100644
--- a/src/runtime_support.h
+++ b/src/runtime_support.h
@@ -280,6 +280,20 @@
   }
 }
 
+static inline void CheckSuspend(Thread* thread)
+    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+  for (;;) {
+    if (thread->ReadFlag(kCheckpointRequest)) {
+      thread->RunCheckpointFunction();
+      thread->AtomicClearFlag(kCheckpointRequest);
+    } else if (thread->ReadFlag(kSuspendRequest)) {
+      thread->FullSuspendCheck();
+    } else {
+      break;
+    }
+  }
+}
+
 }  // namespace art
 
 #endif  // ART_SRC_RUNTIME_SUPPORT_H_