Mark lazily-patched native calls correctly as patchable.

runtime/vm/flow_graph_compiler_ia32.cc

Index: runtime/vm/flow_graph_compiler_ia32.cc
diff --git a/runtime/vm/flow_graph_compiler_ia32.cc b/runtime/vm/flow_graph_compiler_ia32.cc
index 729608ff462adb0e593304be39487dd1d7d13192..07678159e6a1ec49f27dcdd0bf8a080349cff9b2 100644
--- a/runtime/vm/flow_graph_compiler_ia32.cc
+++ b/runtime/vm/flow_graph_compiler_ia32.cc
@@ -1096,6 +1096,16 @@ void FlowGraphCompiler::GenerateCall(TokenPosition token_pos,
 }
 
 
+void FlowGraphCompiler::GeneratePatchableCall(TokenPosition token_pos,
+                                              const StubEntry& stub_entry,
+                                              RawPcDescriptors::Kind kind,
+                                              LocationSummary* locs) {
+  __ CallPatchable(stub_entry);
+  AddCurrentDescriptor(kind, Thread::kNoDeoptId, token_pos);
+  RecordSafepoint(locs);
+}
+
+
 void FlowGraphCompiler::GenerateDartCall(intptr_t deopt_id,
                                          TokenPosition token_pos,
                                          const StubEntry& stub_entry,