Sort class IDs before training AppJIT snapshots

runtime/bin/main.cc

Index: runtime/bin/main.cc
diff --git a/runtime/bin/main.cc b/runtime/bin/main.cc
index dbcb739b1a14c45538153a99d47c0716ce76064c..1bf28335208a0dc7987e3068509dcad2c58bd475 100644
--- a/runtime/bin/main.cc
+++ b/runtime/bin/main.cc
@@ -1448,6 +1448,8 @@ bool RunMainIsolate(const char* script_name, CommandLineOptions* dart_options) {
                   script_name);
       }
 
+      if (gen_snapshot_kind == kAppJIT) Dart_SortClasses();
+
       // The helper function _getMainClosure creates a closure for the main
       // entry point which is either explicitly or implictly exported from the
       // root library.