Reify type params on map literals

test/codegen_expected/stack_trace/stack_trace.js

Index: test/codegen_expected/stack_trace/stack_trace.js
diff --git a/test/codegen_expected/stack_trace/stack_trace.js b/test/codegen_expected/stack_trace/stack_trace.js
index f1a5f285f841e0aaf618ee51d80c538325e84f4b..cdb2cda4c4eadf25d8ba0e7e3492d8c4655cf8b2 100644
--- a/test/codegen_expected/stack_trace/stack_trace.js
+++ b/test/codegen_expected/stack_trace/stack_trace.js
@@ -76,7 +76,7 @@ dart_library.library('stack_trace', null, /* Imports */[
             return async.Zone.current.handleUncaughtError(dart.dynamic)(error, stackTrace);
           }
 
-        }, VoidTodynamic()), {zoneSpecification: spec.toSpec(), zoneValues: dart.map([const$0 || (const$0 = dart.const(core.Symbol.new('stack_trace.stack_zone.spec'))), spec])}));
+        }, VoidTodynamic()), {zoneSpecification: spec.toSpec(), zoneValues: dart.map([const$0 || (const$0 = dart.const(core.Symbol.new('stack_trace.stack_zone.spec'))), spec], core.Symbol, src__stack_zone_specification.StackZoneSpecification)}));
       };
     }
     static track(futureOrStream) {