Move generated files to gen/.

test/codegen/expect/closure.js

-export const closure = Object.create(null);
-import { core, js, dart, dartx } from 'dart_sdk';
-closure.generic_function = function(T) {
-  return (items: core.List<T>, seed: T): core.List<T> => {
-    let strings = items[dartx.map](core.String)(dart.fn((i: T): string => `${i}`, core.String, [T]))[dartx.toList]();
-    return items;
-  };
-};
-dart.fn(closure.generic_function, T => [core.List$(T), [core.List$(T), T]]);
-closure.Callback = dart.typedef('Callback', () => dart.functionType(dart.void, [], {i: core.int}));
-closure.Foo$ = dart.generic(T => {
-  class Foo<T> extends core.Object {
-    i: number;
-    b: boolean;
-    s: string;
-    v: T;
-    static some_static_constant: string;
-    static some_static_final: string;
-    static some_static_var: string;
-    new(i: number, v: T) {
-      this.i = i;
-      this.v = v;
-      this.b = null;
-      this.s = null;
-    }
-    static build() {
-      return new (closure.Foo$(T))(1, null);
-    }
-    untyped_method(a, b) {}
-    pass(t: T) {
-      dart.as(t, T);
-      return t;
-    }
-    typed_method(foo: closure.Foo<any>, list: core.List<any>, i: number, n: number, d: number, b: boolean, s: string, a: any[], o: Object, f: Function) {
-      return '';
-    }
-    optional_params(a, b = null, c: number = null) {}
-    static named_params(a, {b = null, c = null}: {b?: any, c?: number} = {}) {}
-    nullary_method() {}
-    function_params(f: (x: any, y?: any) => number, g: (x: any, opts?: {y?: string, z?: any}) => any, cb: closure.Callback) {
-      cb({i: this.i});
-    }
-    run(a: core.List<any>, b: string, c: (d: string) => core.List<any>, e: (f: (g: any) => any) => core.List<number>, {h = null}: {h?: core.Map<core.Map<any, any>, core.Map<any, any>>} = {}) {}
-    get prop() {
-      return null;
-    }
-    set prop(value: string) {}
-    static get staticProp() {
-      return null;
-    }
-    static set staticProp(value: string) {}
-  }
-  dart.setSignature(Foo, {
-    constructors: () => ({
-      new: [closure.Foo$(T), [core.int, T]],
-      build: [closure.Foo$(T), []]
-    }),
-    methods: () => ({
-      untyped_method: [dart.dynamic, [dart.dynamic, dart.dynamic]],
-      pass: [T, [T]],
-      typed_method: [core.String, [closure.Foo, core.List, core.int, core.num, core.double, core.bool, core.String, js.JsArray, js.JsObject, js.JsFunction]],
-      optional_params: [dart.dynamic, [dart.dynamic], [dart.dynamic, core.int]],
-      nullary_method: [dart.dynamic, []],
-      function_params: [dart.dynamic, [dart.functionType(core.int, [dart.dynamic], [dart.dynamic]), dart.functionType(dart.dynamic, [dart.dynamic], {y: core.String, z: dart.dynamic}), closure.Callback]],
-      run: [dart.dynamic, [core.List, core.String, dart.functionType(core.List, [core.String]), dart.functionType(core.List$(core.int), [dart.functionType(dart.dynamic, [dart.dynamic])])], {h: core.Map$(core.Map, core.Map)}]
-    }),
-    statics: () => ({named_params: [dart.dynamic, [dart.dynamic], {b: dart.dynamic, c: core.int}]}),
-    names: ['named_params']
-  });
-  return Foo;
-});
-closure.Foo = closure.Foo$();
-/** @final {string} */
-closure.Foo.some_static_constant = "abc";
-/** @final {string} */
-closure.Foo.some_static_final = "abc";
-/** @type {string} */
-closure.Foo.some_static_var = "abc";
-closure.Bar = class Bar extends core.Object {};
-closure.Baz = class Baz extends dart.mixin(closure.Foo$(core.int), closure.Bar) {
-  new(i: number) {
-    super.new(i, 123);
-  }
-};
-dart.setSignature(closure.Baz, {
-  constructors: () => ({new: [closure.Baz, [core.int]]})
-});
-closure.main = function(args): void {
-};
-dart.fn(closure.main, dart.void, [dart.dynamic]);
-/** @final {string} */
-closure.some_top_level_constant = "abc";
-/** @final {string} */
-closure.some_top_level_final = "abc";
-/** @type {string} */
-closure.some_top_level_var = "abc";