refactor(ListWrapper): drop filter, find, reduce & any

Closes #5152

modules/angular2/src/common/forms/model.ts

@@ -31,16 +31,17 @@ function _find(control: AbstractControl, path: Array<string | number>| string) {
   }
   if (path instanceof Array && ListWrapper.isEmpty(path)) return null;
 
-  return ListWrapper.reduce(<Array<string | number>>path, (v, name) => {
-    if (v instanceof ControlGroup) {
-      return isPresent(v.controls[name]) ? v.controls[name] : null;
-    } else if (v instanceof ControlArray) {
-      var index = <number>name;
-      return isPresent(v.at(index)) ? v.at(index) : null;
-    } else {
-      return null;
-    }
-  }, control);
+  return (<Array<string | number>>path)
+      .reduce((v, name) => {
+        if (v instanceof ControlGroup) {
+          return isPresent(v.controls[name]) ? v.controls[name] : null;
+        } else if (v instanceof ControlArray) {
+          var index = <number>name;
+          return isPresent(v.at(index)) ? v.at(index) : null;
+        } else {
+          return null;
+        }
+      }, control);
 }
 
 function toObservable(r: any): Observable<any> {
@@ -480,7 +481,7 @@ export class ControlArray extends AbstractControl {
 
   /** @internal */
   _anyControlsHaveStatus(status: string): boolean {
-    return ListWrapper.any(this.controls, c => c.status == status);
+    return this.controls.some(c => c.status == status);
   }
 
 

modules/angular2/src/common/forms/validators.ts

@@ -80,7 +80,7 @@ export class Validators {
    */
   static compose(validators: Function[]): Function {
     if (isBlank(validators)) return null;
-    var presentValidators = ListWrapper.filter(validators, isPresent);
+    var presentValidators = validators.filter(isPresent);
     if (presentValidators.length == 0) return null;
 
     return function(control: modelModule.AbstractControl) {
@@ -90,7 +90,7 @@ export class Validators {
 
   static composeAsync(validators: Function[]): Function {
     if (isBlank(validators)) return null;
-    let presentValidators = ListWrapper.filter(validators, isPresent);
+    var presentValidators = validators.filter(isPresent);
     if (presentValidators.length == 0) return null;
 
     return function(control: modelModule.AbstractControl) {
@@ -109,7 +109,7 @@ function _executeValidators(control: modelModule.AbstractControl, validators: Fu
 }
 
 function _mergeErrors(arrayOfErrors: any[]): {[key: string]: any} {
-  var res = ListWrapper.reduce(arrayOfErrors, (res, errors) => {
+  var res = arrayOfErrors.reduce((res, errors) => {
     return isPresent(errors) ? StringMapWrapper.merge(<any>res, <any>errors) : res;
   }, {});
   return StringMapWrapper.isEmpty(res) ? null : res;