resolverArgumentAnnotations not applied in kotlin

[msl-at-fcb]

Issue Description

The newly introduced resolverArgumentAnnotations configuration (#983) works well in java, but annotations are not applied in kotlin code.

I believe this is just missing code in the kotlin free marker templates. Consider:

https://github.com/kobylynskyi/graphql-java-codegen/blob/master/src/main/resources/templates/java-lang/operations.ftl#L38

and

https://github.com/kobylynskyi/graphql-java-codegen/blob/master/src/main/resources/templates/kotlin-lang/operations.ftl#L41

The kotlin code should look something like (wrapped for clarity):

    fun ${operation.name}(
      <#list operation.parameters as param>
        <#-- include annotations -->
        <#list param.annotations as paramAnnotation>
          @${paramAnnotation}
          <#if param.annotations?has_content> </#if>
        </#list>
        <#-- /include annotations -->
        ${param.name}: ${param.type}
        <#if param_has_next>, </#if>
      </#list>): ${operation.type}

Steps to Reproduce

Generate code using:

{
 "resolverArgumentAnnotations": ["org.springframework.graphql.data.method.annotation.Argument"],
 "language": "JAVA"
}

The relevant @Argument annotation is present.

Replace language with "KOTLIN" and the generated annotation is missing.

Expected Result

Generated code should provide the annotation in both Kotlin and Java.

Actual Result

Generated code provides the annotation in Java but not Kotlin

Your Environment and Setup

• graphql-java-codegen version: 5.5.0
• Build tool: Maven
• Mapping Config:

{
 "resolverArgumentAnnotations": ["org.springframework.graphql.data.method.annotation.Argument"],
 "language": "KOTLIN"
}

[kobylynskyi]

@jxnu-liguobin can you please take a look? Thanks

[kobylynskyi]

Thanks @msl-at-fcb for working on this. I will include your changes in the upcoming release