refactor(es/helpers): Remove unnecessary exports (#9225)

**Description:**

Helper methods were exporting twice, `_` and it's own function name.
We can map the build script to export `_` as it's own name (filename).
Therefore we export only once as `_`, and map the name on the build
script.

```js
// helpers/_foo.js

function _foo() {
  // ...
}

export { _foo as _ }
```
```js
// index.js

// We know the func name will be `_foo` based on the filename.
export { _ as _foo } from '_foo.js'
```

Closes #9203

---------

Co-authored-by: magic-akari <akari.ccino@gmail.com>

packages/helpers/esm/_apply_decorated_descriptor.js

@@ -1,4 +1,4 @@
-export function _apply_decorated_descriptor(target, property, decorators, descriptor, context) {
+function _apply_decorated_descriptor(target, property, decorators, descriptor, context) {
     var desc = {};
 
     Object["ke" + "ys"](descriptor).forEach(function(key) {

packages/helpers/esm/_apply_decs_2203_r.js

@@ -18,7 +18,7 @@
   CLASS = 10; // only used in assertValidReturnValue
 */
 
-export function _apply_decs_2203_r(targetClass, memberDecs, classDecs, parentClass) {
+function _apply_decs_2203_r(targetClass, memberDecs, classDecs, parentClass) {
     function createAddInitializerMethod(initializers, decoratorFinishedRef) {
         return function addInitializer(initializer) {
             assertNotFinished(decoratorFinishedRef, "addInitializer");

packages/helpers/esm/_array_like_to_array.js

@@ -1,4 +1,4 @@
-export function _array_like_to_array(arr, len) {
+function _array_like_to_array(arr, len) {
     if (len == null || len > arr.length) len = arr.length;
 
     for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

packages/helpers/esm/_array_with_holes.js

@@ -1,4 +1,4 @@
-export function _array_with_holes(arr) {
+function _array_with_holes(arr) {
     if (Array.isArray(arr)) return arr;
 }
 export { _array_with_holes as _ };

packages/helpers/esm/_array_without_holes.js

@@ -1,6 +1,6 @@
-import { _array_like_to_array } from "./_array_like_to_array.js";
+import { _ as _array_like_to_array } from "./_array_like_to_array.js";
 
-export function _array_without_holes(arr) {
+function _array_without_holes(arr) {
     if (Array.isArray(arr)) return _array_like_to_array(arr);
 }
 export { _array_without_holes as _ };

packages/helpers/esm/_assert_this_initialized.js

@@ -1,4 +1,4 @@
-export function _assert_this_initialized(self) {
+function _assert_this_initialized(self) {
     if (self === void 0) throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
 
     return self;

packages/helpers/esm/_async_generator.js

@@ -1,6 +1,6 @@
-import { _await_value } from "./_await_value.js";
+import { _ as _await_value } from "./_await_value.js";
 
-export function _async_generator(gen) {
+function _async_generator(gen) {
     var front, back;
 
     function send(key, arg) {

packages/helpers/esm/_async_generator_delegate.js

@@ -1,4 +1,4 @@
-export function _async_generator_delegate(inner, awaitWrap) {
+function _async_generator_delegate(inner, awaitWrap) {
     var iter = {}, waiting = false;
 
     function pump(key, value) {

packages/helpers/esm/_async_iterator.js

@@ -1,4 +1,4 @@
-export function _async_iterator(iterable) {
+function _async_iterator(iterable) {
     var method, async, sync, retry = 2;
     for ("undefined" != typeof Symbol && (async = Symbol.asyncIterator, sync = Symbol.iterator); retry--;) {
         if (async && null != (method = iterable[async])) return method.call(iterable);

packages/helpers/esm/_async_to_generator.js

@@ -9,7 +9,7 @@ function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
     if (info.done) resolve(value);
     else Promise.resolve(value).then(_next, _throw);
 }
-export function _async_to_generator(fn) {
+function _async_to_generator(fn) {
     return function() {
         var self = this, args = arguments;
 

packages/helpers/esm/_await_async_generator.js

@@ -1,6 +1,6 @@
-import { _await_value } from "./_await_value.js";
+import { _ as _await_value } from "./_await_value.js";
 
-export function _await_async_generator(value) {
+function _await_async_generator(value) {
     return new _await_value(value);
 }
 export { _await_async_generator as _ };

packages/helpers/esm/_await_value.js

@@ -1,4 +1,4 @@
-export function _await_value(value) {
+function _await_value(value) {
     this.wrapped = value;
 }
 export { _await_value as _ };

packages/helpers/esm/_check_private_redeclaration.js

@@ -1,4 +1,4 @@
-export function _check_private_redeclaration(obj, privateCollection) {
+function _check_private_redeclaration(obj, privateCollection) {
     if (privateCollection.has(obj)) {
         throw new TypeError("Cannot initialize the same private elements twice on an object");
     }

packages/helpers/esm/_class_apply_descriptor_destructure.js

@@ -1,4 +1,4 @@
-export function _class_apply_descriptor_destructure(receiver, descriptor) {
+function _class_apply_descriptor_destructure(receiver, descriptor) {
     if (descriptor.set) {
         if (!("__destrObj" in descriptor)) {
             descriptor.__destrObj = {

packages/helpers/esm/_class_apply_descriptor_get.js

@@ -1,4 +1,4 @@
-export function _class_apply_descriptor_get(receiver, descriptor) {
+function _class_apply_descriptor_get(receiver, descriptor) {
     if (descriptor.get) return descriptor.get.call(receiver);
 
     return descriptor.value;

packages/helpers/esm/_class_apply_descriptor_set.js

@@ -1,4 +1,4 @@
-export function _class_apply_descriptor_set(receiver, descriptor, value) {
+function _class_apply_descriptor_set(receiver, descriptor, value) {
     if (descriptor.set) descriptor.set.call(receiver, value);
     else {
         if (!descriptor.writable) {

packages/helpers/esm/_class_apply_descriptor_update.js

@@ -1,4 +1,4 @@
-export function _class_apply_descriptor_update(receiver, descriptor) {
+function _class_apply_descriptor_update(receiver, descriptor) {
     if (descriptor.set) {
         if (!descriptor.get) throw new TypeError("attempted to read set only private field");
 

packages/helpers/esm/_class_call_check.js

@@ -1,4 +1,4 @@
-export function _class_call_check(instance, Constructor) {
+function _class_call_check(instance, Constructor) {
     if (!(instance instanceof Constructor)) throw new TypeError("Cannot call a class as a function");
 }
 export { _class_call_check as _ };

packages/helpers/esm/_class_check_private_static_access.js

@@ -1,4 +1,4 @@
-export function _class_check_private_static_access(receiver, classConstructor) {
+function _class_check_private_static_access(receiver, classConstructor) {
     if (receiver !== classConstructor) throw new TypeError("Private static access of wrong provenance");
 }
 export { _class_check_private_static_access as _ };

packages/helpers/esm/_class_check_private_static_field_descriptor.js

@@ -1,4 +1,4 @@
-export function _class_check_private_static_field_descriptor(descriptor, action) {
+function _class_check_private_static_field_descriptor(descriptor, action) {
     if (descriptor === undefined) {
         throw new TypeError("attempted to " + action + " private static field before its declaration");
     }

packages/helpers/esm/_class_extract_field_descriptor.js

@@ -1,4 +1,4 @@
-export function _class_extract_field_descriptor(receiver, privateMap, action) {
+function _class_extract_field_descriptor(receiver, privateMap, action) {
     if (!privateMap.has(receiver)) throw new TypeError("attempted to " + action + " private field on non-instance");
 
     return privateMap.get(receiver);

packages/helpers/esm/_class_name_tdz_error.js

@@ -1,4 +1,4 @@
-export function _class_name_tdz_error(name) {
+function _class_name_tdz_error(name) {
     throw new Error("Class \"" + name + "\" cannot be referenced in computed property keys.");
 }
 export { _class_name_tdz_error as _ };

packages/helpers/esm/_class_private_field_destructure.js

@@ -1,7 +1,7 @@
-import { _class_apply_descriptor_destructure } from "./_class_apply_descriptor_destructure.js";
-import { _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
+import { _ as _class_apply_descriptor_destructure } from "./_class_apply_descriptor_destructure.js";
+import { _ as _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
 
-export function _class_private_field_destructure(receiver, privateMap) {
+function _class_private_field_destructure(receiver, privateMap) {
     var descriptor = _class_extract_field_descriptor(receiver, privateMap, "set");
     return _class_apply_descriptor_destructure(receiver, descriptor);
 }

packages/helpers/esm/_class_private_field_get.js

@@ -1,7 +1,7 @@
-import { _class_apply_descriptor_get } from "./_class_apply_descriptor_get.js";
-import { _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
+import { _ as _class_apply_descriptor_get } from "./_class_apply_descriptor_get.js";
+import { _ as _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
 
-export function _class_private_field_get(receiver, privateMap) {
+function _class_private_field_get(receiver, privateMap) {
     var descriptor = _class_extract_field_descriptor(receiver, privateMap, "get");
     return _class_apply_descriptor_get(receiver, descriptor);
 }

packages/helpers/esm/_class_private_field_init.js

@@ -1,6 +1,6 @@
-import { _check_private_redeclaration } from "./_check_private_redeclaration.js";
+import { _ as _check_private_redeclaration } from "./_check_private_redeclaration.js";
 
-export function _class_private_field_init(obj, privateMap, value) {
+function _class_private_field_init(obj, privateMap, value) {
     _check_private_redeclaration(obj, privateMap);
     privateMap.set(obj, value);
 }

packages/helpers/esm/_class_private_field_loose_base.js

@@ -1,4 +1,4 @@
-export function _class_private_field_loose_base(receiver, privateKey) {
+function _class_private_field_loose_base(receiver, privateKey) {
     if (!Object.prototype.hasOwnProperty.call(receiver, privateKey)) {
         throw new TypeError("attempted to use private field on non-instance");
     }

packages/helpers/esm/_class_private_field_loose_key.js

@@ -1,6 +1,6 @@
 var id = 0;
 
-export function _class_private_field_loose_key(name) {
+function _class_private_field_loose_key(name) {
     return "__private_" + id++ + "_" + name;
 }
 export { _class_private_field_loose_key as _ };

packages/helpers/esm/_class_private_field_set.js

@@ -1,7 +1,7 @@
-import { _class_apply_descriptor_set } from "./_class_apply_descriptor_set.js";
-import { _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
+import { _ as _class_apply_descriptor_set } from "./_class_apply_descriptor_set.js";
+import { _ as _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
 
-export function _class_private_field_set(receiver, privateMap, value) {
+function _class_private_field_set(receiver, privateMap, value) {
     var descriptor = _class_extract_field_descriptor(receiver, privateMap, "set");
     _class_apply_descriptor_set(receiver, descriptor, value);
     return value;

packages/helpers/esm/_class_private_field_update.js

@@ -1,7 +1,7 @@
-import { _class_apply_descriptor_update } from "./_class_apply_descriptor_update.js";
-import { _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
+import { _ as _class_apply_descriptor_update } from "./_class_apply_descriptor_update.js";
+import { _ as _class_extract_field_descriptor } from "./_class_extract_field_descriptor.js";
 
-export function _class_private_field_update(receiver, privateMap) {
+function _class_private_field_update(receiver, privateMap) {
     var descriptor = _class_extract_field_descriptor(receiver, privateMap, "update");
     return _class_apply_descriptor_update(receiver, descriptor);
 }

packages/helpers/esm/_class_private_method_get.js

@@ -1,4 +1,4 @@
-export function _class_private_method_get(receiver, privateSet, fn) {
+function _class_private_method_get(receiver, privateSet, fn) {
     if (!privateSet.has(receiver)) throw new TypeError("attempted to get private field on non-instance");
 
     return fn;

packages/helpers/esm/_class_private_method_init.js

@@ -1,6 +1,6 @@
-import { _check_private_redeclaration } from "./_check_private_redeclaration.js";
+import { _ as _check_private_redeclaration } from "./_check_private_redeclaration.js";
 
-export function _class_private_method_init(obj, privateSet) {
+function _class_private_method_init(obj, privateSet) {
     _check_private_redeclaration(obj, privateSet);
     privateSet.add(obj);
 }

packages/helpers/esm/_class_private_method_set.js

@@ -1,4 +1,4 @@
-export function _class_private_method_set() {
+function _class_private_method_set() {
     throw new TypeError("attempted to reassign private method");
 }
 export { _class_private_method_set as _ };

packages/helpers/esm/_class_static_private_field_destructure.js

@@ -1,8 +1,8 @@
-import { _class_apply_descriptor_destructure } from "./_class_apply_descriptor_destructure.js";
-import { _class_check_private_static_access } from "./_class_check_private_static_access.js";
-import { _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
+import { _ as _class_apply_descriptor_destructure } from "./_class_apply_descriptor_destructure.js";
+import { _ as _class_check_private_static_access } from "./_class_check_private_static_access.js";
+import { _ as _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
 
-export function _class_static_private_field_destructure(receiver, classConstructor, descriptor) {
+function _class_static_private_field_destructure(receiver, classConstructor, descriptor) {
     _class_check_private_static_access(receiver, classConstructor);
     _class_check_private_static_field_descriptor(descriptor, "set");
 

packages/helpers/esm/_class_static_private_field_spec_get.js

@@ -1,8 +1,8 @@
-import { _class_apply_descriptor_get } from "./_class_apply_descriptor_get.js";
-import { _class_check_private_static_access } from "./_class_check_private_static_access.js";
-import { _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
+import { _ as _class_apply_descriptor_get } from "./_class_apply_descriptor_get.js";
+import { _ as _class_check_private_static_access } from "./_class_check_private_static_access.js";
+import { _ as _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
 
-export function _class_static_private_field_spec_get(receiver, classConstructor, descriptor) {
+function _class_static_private_field_spec_get(receiver, classConstructor, descriptor) {
     _class_check_private_static_access(receiver, classConstructor);
     _class_check_private_static_field_descriptor(descriptor, "get");
 

packages/helpers/esm/_class_static_private_field_spec_set.js

@@ -1,8 +1,8 @@
-import { _class_apply_descriptor_set } from "./_class_apply_descriptor_set.js";
-import { _class_check_private_static_access } from "./_class_check_private_static_access.js";
-import { _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
+import { _ as _class_apply_descriptor_set } from "./_class_apply_descriptor_set.js";
+import { _ as _class_check_private_static_access } from "./_class_check_private_static_access.js";
+import { _ as _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
 
-export function _class_static_private_field_spec_set(receiver, classConstructor, descriptor, value) {
+function _class_static_private_field_spec_set(receiver, classConstructor, descriptor, value) {
     _class_check_private_static_access(receiver, classConstructor);
     _class_check_private_static_field_descriptor(descriptor, "set");
     _class_apply_descriptor_set(receiver, descriptor, value);

packages/helpers/esm/_class_static_private_field_update.js

@@ -1,8 +1,8 @@
-import { _class_apply_descriptor_update } from "./_class_apply_descriptor_update.js";
-import { _class_check_private_static_access } from "./_class_check_private_static_access.js";
-import { _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
+import { _ as _class_apply_descriptor_update } from "./_class_apply_descriptor_update.js";
+import { _ as _class_check_private_static_access } from "./_class_check_private_static_access.js";
+import { _ as _class_check_private_static_field_descriptor } from "./_class_check_private_static_field_descriptor.js";
 
-export function _class_static_private_field_update(receiver, classConstructor, descriptor) {
+function _class_static_private_field_update(receiver, classConstructor, descriptor) {
     _class_check_private_static_access(receiver, classConstructor);
     _class_check_private_static_field_descriptor(descriptor, "update");
 

packages/helpers/esm/_class_static_private_method_get.js

@@ -1,6 +1,6 @@
-import { _class_check_private_static_access } from "./_class_check_private_static_access.js";
+import { _ as _class_check_private_static_access } from "./_class_check_private_static_access.js";
 
-export function _class_static_private_method_get(receiver, classConstructor, method) {
+function _class_static_private_method_get(receiver, classConstructor, method) {
     _class_check_private_static_access(receiver, classConstructor);
 
     return method;

packages/helpers/esm/_construct.js

@@ -1,6 +1,6 @@
-import { _is_native_reflect_construct } from "./_is_native_reflect_construct.js";
-import { _set_prototype_of } from "./_set_prototype_of.js";
-export function _construct(Parent, args, Class) {
+import { _ as _is_native_reflect_construct } from "./_is_native_reflect_construct.js";
+import { _ as _set_prototype_of } from "./_set_prototype_of.js";
+function _construct(Parent, args, Class) {
     if (_is_native_reflect_construct()) _construct = Reflect.construct;
     else {
         _construct = function construct(Parent, args, Class) {

packages/helpers/esm/_create_class.js

@@ -9,7 +9,7 @@ function _defineProperties(target, props) {
         Object.defineProperty(target, descriptor.key, descriptor);
     }
 }
-export function _create_class(Constructor, protoProps, staticProps) {
+function _create_class(Constructor, protoProps, staticProps) {
     if (protoProps) _defineProperties(Constructor.prototype, protoProps);
     if (staticProps) _defineProperties(Constructor, staticProps);
 

packages/helpers/esm/_create_for_of_iterator_helper_loose.js

@@ -1,6 +1,6 @@
-import { _unsupported_iterable_to_array } from "./_unsupported_iterable_to_array.js";
+import { _ as _unsupported_iterable_to_array } from "./_unsupported_iterable_to_array.js";
 
-export function _create_for_of_iterator_helper_loose(o, allowArrayLike) {
+function _create_for_of_iterator_helper_loose(o, allowArrayLike) {
     var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
 
     if (it) return (it = it.call(o)).next.bind(it);

packages/helpers/esm/_create_super.js

@@ -1,8 +1,8 @@
-import { _get_prototype_of } from "./_get_prototype_of.js";
-import { _is_native_reflect_construct } from "./_is_native_reflect_construct.js";
-import { _possible_constructor_return } from "./_possible_constructor_return.js";
+import { _ as _get_prototype_of } from "./_get_prototype_of.js";
+import { _ as _is_native_reflect_construct } from "./_is_native_reflect_construct.js";
+import { _ as _possible_constructor_return } from "./_possible_constructor_return.js";
 
-export function _create_super(Derived) {
+function _create_super(Derived) {
     var hasNativeReflectConstruct = _is_native_reflect_construct();
 
     return function _createSuperInternal() {

packages/helpers/esm/_decorate.js

@@ -1,8 +1,8 @@
-import { _to_array } from "./_to_array.js";
-import { _to_property_key } from "./_to_property_key.js";
-import { _type_of } from "./_type_of.js";
+import { _ as _to_array } from "./_to_array.js";
+import { _ as _to_property_key } from "./_to_property_key.js";
+import { _ as _type_of } from "./_type_of.js";
 
-export function _decorate(decorators, factory, superClass) {
+function _decorate(decorators, factory, superClass) {
     var r = factory(function initialize(O) {
         _initializeInstanceElements(O, decorated.elements);
     }, superClass);

packages/helpers/esm/_defaults.js

@@ -1,4 +1,4 @@
-export function _defaults(obj, defaults) {
+function _defaults(obj, defaults) {
     var keys = Object.getOwnPropertyNames(defaults);
 
     for (var i = 0; i < keys.length; i++) {

packages/helpers/esm/_define_enumerable_properties.js

@@ -1,4 +1,4 @@
-export function _define_enumerable_properties(obj, descs) {
+function _define_enumerable_properties(obj, descs) {
     for (var key in descs) {
         var desc = descs[key];
         desc.configurable = desc.enumerable = true;

packages/helpers/esm/_define_property.js

@@ -1,4 +1,4 @@
-export function _define_property(obj, key, value) {
+function _define_property(obj, key, value) {
     if (key in obj) {
         Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true });
     } else obj[key] = value;

packages/helpers/esm/_dispose.js

@@ -14,7 +14,7 @@ function dispose_SuppressedError(suppressed, error) {
     return new dispose_SuppressedError(suppressed, error);
 }
 
-export function _dispose(stack, error, hasError) {
+function _dispose(stack, error, hasError) {
     function next() {
         while (stack.length > 0) {
             try {

packages/helpers/esm/_export_star.js

@@ -1,4 +1,4 @@
-export function _export_star(from, to) {
+function _export_star(from, to) {
     Object.keys(from).forEach(function(k) {
         if (k !== "default" && !Object.prototype.hasOwnProperty.call(to, k)) {
             Object.defineProperty(to, k, {

packages/helpers/esm/_extends.js

@@ -1,4 +1,4 @@
-export function _extends() {
+function _extends() {
     _extends = Object.assign || function assign(target) {
         for (var i = 1; i < arguments.length; i++) {
             var source = arguments[i];

packages/helpers/esm/_get.js

@@ -1,6 +1,6 @@
-import { _super_prop_base } from "./_super_prop_base.js";
+import { _ as _super_prop_base } from "./_super_prop_base.js";
 
-export function _get(target, property, receiver) {
+function _get(target, property, receiver) {
     if (typeof Reflect !== "undefined" && Reflect.get) _get = Reflect.get;
     else {
         _get = function get(target, property, receiver) {