Make JS client case sensitive wrt. reserved words (#8905)

Fixes #8904

samples/client/petstore/javascript-es6/docs/FakeApi.md

@@ -436,7 +436,7 @@ No authorization required
 
 ## testEndpointParameters
 
-> testEndpointParameters(_number, _double, patternWithoutDelimiter, _byte, opts)
+> testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, opts)
 
 Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트 
 
@@ -453,7 +453,7 @@ http_basic_test.username = 'YOUR USERNAME';
 http_basic_test.password = 'YOUR PASSWORD';
 
 let apiInstance = new OpenApiPetstore.FakeApi();
-let _number = 3.4; // Number | None
+let number = 3.4; // Number | None
 let _double = 3.4; // Number | None
 let patternWithoutDelimiter = "patternWithoutDelimiter_example"; // String | None
 let _byte = null; // Blob | None
@@ -462,14 +462,14 @@ let opts = {
   'int32': 56, // Number | None
   'int64': 789, // Number | None
   '_float': 3.4, // Number | None
-  '_string': "_string_example", // String | None
+  'string': "string_example", // String | None
   'binary': "/path/to/file", // File | None
-  '_date': new Date("2013-10-20"), // Date | None
+  'date': new Date("2013-10-20"), // Date | None
   'dateTime': new Date("2013-10-20T19:20:30+01:00"), // Date | None
   'password': "password_example", // String | None
   'callback': "callback_example" // String | None
 };
-apiInstance.testEndpointParameters(_number, _double, patternWithoutDelimiter, _byte, opts, (error, data, response) => {
+apiInstance.testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, opts, (error, data, response) => {
   if (error) {
     console.error(error);
   } else {
@@ -483,7 +483,7 @@ apiInstance.testEndpointParameters(_number, _double, patternWithoutDelimiter, _b
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **_number** | **Number**| None | 
+ **number** | **Number**| None | 
  **_double** | **Number**| None | 
  **patternWithoutDelimiter** | **String**| None | 
  **_byte** | **Blob**| None | 
@@ -491,9 +491,9 @@ Name | Type | Description  | Notes
  **int32** | **Number**| None | [optional] 
  **int64** | **Number**| None | [optional] 
  **_float** | **Number**| None | [optional] 
- **_string** | **String**| None | [optional] 
+ **string** | **String**| None | [optional] 
  **binary** | **File**| None | [optional] 
- **_date** | **Date**| None | [optional] 
+ **date** | **Date**| None | [optional] 
  **dateTime** | **Date**| None | [optional] 
  **password** | **String**| None | [optional] 
  **callback** | **String**| None | [optional] 

samples/client/petstore/javascript-es6/docs/FormatTest.md

@@ -7,14 +7,14 @@ Name | Type | Description | Notes
 **integer** | **Number** |  | [optional] 
 **int32** | **Number** |  | [optional] 
 **int64** | **Number** |  | [optional] 
-**_number** | **Number** |  | 
+**number** | **Number** |  | 
 **_float** | **Number** |  | [optional] 
 **_double** | **Number** |  | [optional] 
 **decimal** | **Number** |  | [optional] 
-**_string** | **String** |  | [optional] 
+**string** | **String** |  | [optional] 
 **_byte** | **Blob** |  | 
 **binary** | **File** |  | [optional] 
-**_date** | **Date** |  | 
+**date** | **Date** |  | 
 **dateTime** | **Date** |  | [optional] 
 **uuid** | **String** |  | [optional] 
 **password** | **String** |  | 

samples/client/petstore/javascript-es6/docs/InlineResponseDefault.md

@@ -4,6 +4,6 @@
 
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**_string** | [**Foo**](Foo.md) |  | [optional] 
+**string** | [**Foo**](Foo.md) |  | [optional] 
 
 

samples/client/petstore/javascript-es6/docs/Return.md

@@ -0,0 +1,9 @@
+# OpenApiPetstore.Return
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**_return** | **Number** |  | [optional] 
+
+