Mark lazily-patched native calls correctly as patchable.

runtime/vm/flow_graph_compiler.h

Index: runtime/vm/flow_graph_compiler.h
diff --git a/runtime/vm/flow_graph_compiler.h b/runtime/vm/flow_graph_compiler.h
index fe777cfef608b0620595a3094d0a30ded4232436..afdb4cb0a7bff56de4f7de68e5c6c1d5debc03e6 100644
--- a/runtime/vm/flow_graph_compiler.h
+++ b/runtime/vm/flow_graph_compiler.h
@@ -346,6 +346,11 @@ class FlowGraphCompiler : public ValueObject {
                     RawPcDescriptors::Kind kind,
                     LocationSummary* locs);
 
+  void GeneratePatchableCall(TokenPosition token_pos,
+                             const StubEntry& stub_entry,
+                             RawPcDescriptors::Kind kind,
+                             LocationSummary* locs);
+
   void GenerateDartCall(intptr_t deopt_id,
                         TokenPosition token_pos,
                         const StubEntry& stub_entry,