Fix deferred library code disabling for inlined functions.

runtime/vm/flow_graph.h

Index: runtime/vm/flow_graph.h
===================================================================
--- runtime/vm/flow_graph.h	(revision 37101)
+++ runtime/vm/flow_graph.h	(working copy)
@@ -216,11 +216,18 @@
 
   static void AddToGuardedFields(ZoneGrowableArray<const Field*>* array,
                                  const Field* field);
+  static void AddToDeferredPrefixes(
+      ZoneGrowableArray<const LibraryPrefix*>* to,
+      ZoneGrowableArray<const LibraryPrefix*>* from);
 
   ZoneGrowableArray<const Field*>* guarded_fields() const {
     return guarded_fields_;
   }
 
+  ZoneGrowableArray<const LibraryPrefix*>* deferred_prefixes() const {
+    return deferred_prefixes_;
+  }
+
  private:
   friend class IfConverter;
   friend class BranchSimplifier;
@@ -300,6 +307,7 @@
   ZoneGrowableArray<BlockEntryInstr*>* loop_headers_;
   ZoneGrowableArray<BitVector*>* loop_invariant_loads_;
   ZoneGrowableArray<const Field*>* guarded_fields_;
+  ZoneGrowableArray<const LibraryPrefix*>* deferred_prefixes_;
 };