Kotlin: Fix ParameterizedInput and toString() issue (#573)

* fxi ParameterizedInput bug

* fix tostring

Author: jxnu-liguobin

src/main/resources/templates/kotlin-lang/kotlinClassGraphqlParametrizedInput.ftl

@@ -3,6 +3,7 @@ package ${package}
 
 </#if>
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer
 import java.util.StringJoiner
 <#if javaDoc?has_content>
 /**

src/main/resources/templates/kotlin-lang/kotlinClassGraphqlType.ftl

@@ -130,7 +130,7 @@ open class ${className}()<#if implements?has_content> : <#list implements as int
         return true</#if>
     }
 
-    override fun hashCode(): Int = {
+    override fun hashCode(): Int {
     <#if fields?has_content>
         return Objects.hash(<#list fields as field>${field.name}<#if field_has_next>, </#if></#list>)
     <#else>

src/main/resources/templates/scala-lang/scalaClassGraphqlParametrizedInput.ftl

@@ -4,6 +4,7 @@ package ${package}
 
 </#if>
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer
 import scala.collection.JavaConverters._
 <#if fields?has_content>
     <#if enumImportItSelfInScala?has_content>

src/test/java/com/kobylynskyi/graphql/codegen/scala/GraphQLCodegenReactorToStringTest.java

@@ -103,13 +103,15 @@ void generate_SetGenerateClient_False() throws Exception {
                 outputBuildDir, mappingConfig, TestUtils.getStaticGeneratedInfo()).generate();
 
         File[] files = Objects.requireNonNull(outputJavaClassesDir.listFiles());
-        List<String> generatedFileNames = Arrays.stream(files).map(File::getName).filter(f -> Objects.equals("Synchronized.scala", f)).sorted().collect(toList());
+        List<String> generatedFileNames = Arrays.stream(files).map(File::getName).filter(f -> Objects.equals("Synchronized.scala", f)
+                || Objects.equals("QueryCaseParametrizedInput.scala", f)).sorted().collect(toList());
         assertEquals(singletonList("Synchronized.scala"), generatedFileNames);
 
         for (File file : files) {
-            if (Objects.equals("Synchronized.scala", file.getName())) {
+            if (Arrays.asList("QueryCaseParametrizedInput.scala", "Synchronized.scala").contains(file.getName())) {
                 assertSameTrimmedContent(
-                        new File(String.format("src/test/resources/expected-classes/scala/tostring/%s.txt", "TOSTRING_Synchronized.scala")),
+                        new File(String.format("src/test/resources/expected-classes/scala/tostring/%s.txt", "TOSTRING_Synchronized.scala",
+                                "QueryCaseParametrizedInput")),
                         file);
             }
         }

src/test/resources/expected-classes/kt/Commit_no_final_class.kt.txt

@@ -172,7 +172,7 @@ open class Commit(
 
     }
 
-    override fun hashCode(): Int = {
+    override fun hashCode(): Int {
         return Objects.hash(abbreviatedOid, additions, associatedPullRequests, author, authoredByCommitter, authoredDate, blame, changedFiles, comments, commitResourcePath, commitUrl, committedDate, committedViaWeb, committer, deletions, deployments, history, id, message, messageBody, messageBodyHTML, messageHeadline, messageHeadlineHTML, oid, parents, pushedDate, repository, resourcePath, signature, status, tarballUrl, tree, treeResourcePath, treeUrl, url, viewerCanSubscribe, viewerSubscription, zipballUrl)
     }
 

src/test/resources/expected-classes/kt/restricted-words/QueryFunParametrizedInput.kt.txt

@@ -1,6 +1,7 @@
 package com.kobylynskyi.graphql.codegen.prot
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer
 import java.util.StringJoiner
 /**
  * Parametrized input for field fun in type Query

src/test/resources/expected-classes/scala/tostring/QueryPrivateParametrizedInput.scala.txt

@@ -1,6 +1,7 @@
 package com.kobylynskyi.graphql.codegen.prot
 
 import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLParametrizedInput
+import com.kobylynskyi.graphql.codegen.model.graphql.GraphQLRequestSerializer
 import scala.collection.JavaConverters._
 import TestEnum._