Reify type params on map literals

test/codegen_expected/lib/convert/json_toEncodable_reviver_test.js

 dart_library.library('lib/convert/json_toEncodable_reviver_test', null, /* Imports */[
   'dart_sdk',
   'expect'
 ], function load__json_toEncodable_reviver_test(exports, dart_sdk, expect) {
   'use strict';
   const core = dart_sdk.core;
   const convert = dart_sdk.convert;
   const _interceptors = dart_sdk._interceptors;
   const dart = dart_sdk.dart;
   const dartx = dart_sdk.dartx;
   const expect$ = expect.expect;
   const json_toEncodable_reviver_test = Object.create(null);
   let JSArrayOfObject = () => (JSArrayOfObject = dart.constFn(_interceptors.JSArray$(core.Object)))();
   let ATodynamic = () => (ATodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [json_toEncodable_reviver_test.A])))();
   let dynamicAnddynamicTodynamic = () => (dynamicAnddynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])))();
   let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
   let dynamicToString = () => (dynamicToString = dart.constFn(dart.definiteFunctionType(core.String, [dart.dynamic])))();
   let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
   json_toEncodable_reviver_test.A = class A extends core.Object {
     new(x) {
       this.x = x;
     }
   };
   dart.setSignature(json_toEncodable_reviver_test.A, {
     constructors: () => ({new: dart.definiteFunctionType(json_toEncodable_reviver_test.A, [dart.dynamic])})
   });
   json_toEncodable_reviver_test.toEncodable = function(a) {
-    return dart.map({A: a.x});
+    return dart.map({A: a.x}, core.String, dart.dynamic);
   };
   dart.fn(json_toEncodable_reviver_test.toEncodable, ATodynamic());
   json_toEncodable_reviver_test.reviver = function(key, value) {
     if (core.Map.is(value) && value[dartx.length] == 1 && value[dartx.get]("A") != null) {
       return new json_toEncodable_reviver_test.A(value[dartx.get]("A"));
     }
     return value;
   };
   dart.fn(json_toEncodable_reviver_test.reviver, dynamicAnddynamicTodynamic());
   json_toEncodable_reviver_test.extendedJson = dart.const(new convert.JsonCodec({toEncodable: json_toEncodable_reviver_test.toEncodable, reviver: json_toEncodable_reviver_test.reviver}));
   json_toEncodable_reviver_test.main = function() {
-    let encoded = json_toEncodable_reviver_test.extendedJson.encode(JSArrayOfObject().of([new json_toEncodable_reviver_test.A(0), dart.map({"2": new json_toEncodable_reviver_test.A(1)})]));
+    let encoded = json_toEncodable_reviver_test.extendedJson.encode(JSArrayOfObject().of([new json_toEncodable_reviver_test.A(0), dart.map({"2": new json_toEncodable_reviver_test.A(1)}, core.String, json_toEncodable_reviver_test.A)]));
     expect$.Expect.equals('[{"A":0},{"2":{"A":1}}]', encoded);
     let decoded = json_toEncodable_reviver_test.extendedJson.decode(encoded);
     expect$.Expect.isTrue(core.List.is(decoded));
     expect$.Expect.equals(2, dart.dload(decoded, 'length'));
     expect$.Expect.isTrue(json_toEncodable_reviver_test.A.is(dart.dindex(decoded, 0)));
     expect$.Expect.equals(0, dart.dload(dart.dindex(decoded, 0), 'x'));
     expect$.Expect.isTrue(core.Map.is(dart.dindex(decoded, 1)));
     expect$.Expect.isNotNull(dart.dindex(dart.dindex(decoded, 1), "2"));
     expect$.Expect.isTrue(json_toEncodable_reviver_test.A.is(dart.dindex(dart.dindex(decoded, 1), "2")));
     expect$.Expect.equals(1, dart.dload(dart.dindex(dart.dindex(decoded, 1), "2"), 'x'));
     let a = json_toEncodable_reviver_test.extendedJson.decode(json_toEncodable_reviver_test.extendedJson.encode(new json_toEncodable_reviver_test.A(499)));
     expect$.Expect.isTrue(json_toEncodable_reviver_test.A.is(a));
     expect$.Expect.equals(499, dart.dload(a, 'x'));
     json_toEncodable_reviver_test.testInvalidMap();
   };
   dart.fn(json_toEncodable_reviver_test.main, VoidTodynamic());
   json_toEncodable_reviver_test.testInvalidMap = function() {
-    let map = dart.map(["a", 42, "b", 42, 37, 42]);
+    let map = dart.map(["a", 42, "b", 42, 37, 42], core.Object, core.int);
     let enc = new convert.JsonEncoder(dart.fn(_ => "fixed", dynamicToString()));
     let res = enc.convert(map);
     expect$.Expect.equals('"fixed"', res);
     enc = new convert.JsonEncoder.withIndent(" ", dart.fn(_ => "fixed", dynamicToString()));
     res = enc.convert(map);
     expect$.Expect.equals('"fixed"', res);
   };
   dart.fn(json_toEncodable_reviver_test.testInvalidMap, VoidTovoid());
   // Exports:
   exports.json_toEncodable_reviver_test = json_toEncodable_reviver_test;
 });