Reify type params on map literals

test/codegen_expected/language/call_nonexistent_static_test_none_multi.js

 dart_library.library('language/call_nonexistent_static_test_none_multi', null, /* Imports */[
   'dart_sdk',
   'expect'
 ], function load__call_nonexistent_static_test_none_multi(exports, dart_sdk, expect) {
   'use strict';
   const core = dart_sdk.core;
   const dart = dart_sdk.dart;
   const dartx = dart_sdk.dartx;
   const expect$ = expect.expect;
   const call_nonexistent_static_test_none_multi = Object.create(null);
   let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.functionType(dart.void, [])))();
   let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
   let __Todynamic = () => (__Todynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [], [VoidTovoid()])))();
   let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
   call_nonexistent_static_test_none_multi.C = class C extends core.Object {};
   call_nonexistent_static_test_none_multi.D = class D extends core.Object {};
   call_nonexistent_static_test_none_multi.expectNsme = function(fun) {
     if (fun === void 0) fun = null;
     if (fun != null) {
       expect$.Expect.throws(fun, dart.fn(e => core.NoSuchMethodError.is(e), dynamicTobool()));
     }
   };
   dart.fn(call_nonexistent_static_test_none_multi.expectNsme, __Todynamic());
   let const$;
   call_nonexistent_static_test_none_multi.alwaysThrows = function() {
-    dart.throw(new core.NoSuchMethodError(null, const$ || (const$ = dart.const(core.Symbol.new('foo'))), [], dart.map()));
+    dart.throw(new core.NoSuchMethodError(null, const$ || (const$ = dart.const(core.Symbol.new('foo'))), [], dart.map({}, core.Symbol, dart.dynamic)));
   };
   dart.fn(call_nonexistent_static_test_none_multi.alwaysThrows, VoidTodynamic());
   call_nonexistent_static_test_none_multi.test01 = function() {
   };
   dart.fn(call_nonexistent_static_test_none_multi.test01, VoidTodynamic());
   call_nonexistent_static_test_none_multi.test02 = function() {
   };
   dart.fn(call_nonexistent_static_test_none_multi.test02, VoidTodynamic());
   call_nonexistent_static_test_none_multi.test03 = function() {
   };
@@ skipping 29 matching lines @@
     call_nonexistent_static_test_none_multi.expectNsme();
     call_nonexistent_static_test_none_multi.expectNsme();
     call_nonexistent_static_test_none_multi.expectNsme();
     call_nonexistent_static_test_none_multi.expectNsme();
     call_nonexistent_static_test_none_multi.expectNsme();
   };
   dart.fn(call_nonexistent_static_test_none_multi.main, VoidTodynamic());
   // Exports:
   exports.call_nonexistent_static_test_none_multi = call_nonexistent_static_test_none_multi;
 });