Add tree-sitter-kotlin language support from unofficial parser

settings.gradle

@@ -25,4 +25,5 @@ include 'tree-sitter-typescript'
 include 'tree-sitter-tsx'
 include 'tree-sitter-verilog'
 include 'tree-sitter-demo'
-include 'tree-sitter-tests'
+include 'tree-sitter-tests'
+include 'tree-sitter-kotlin'

tree-sitter-kotlin/build.gradle

@@ -0,0 +1,4 @@
+
+tasks.named('downloadSource') {
+    url = "https://github.com/fwcd/tree-sitter-kotlin/archive/refs/tags/0.3.8.zip"
+}

tree-sitter-kotlin/gradle.properties

@@ -0,0 +1 @@
+libVersion=0.3.8

tree-sitter-kotlin/src/main/c/org_treesitter_TreeSitterKotlin.c

@@ -0,0 +1,12 @@
+
+#include <jni.h>
+void *tree_sitter_kotlin();
+/*
+ * Class:     org_treesitter_TreeSitterKotlin
+ * Method:    tree_sitter_kotlin
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL Java_org_treesitter_TreeSitterKotlin_tree_1sitter_1kotlin
+  (JNIEnv *env, jclass clz){
+   return (jlong) tree_sitter_kotlin();
+}

tree-sitter-kotlin/src/main/java/org/treesitter/TreeSitterKotlin.java

@@ -0,0 +1,25 @@
+
+package org.treesitter;
+
+import org.treesitter.utils.NativeUtils;
+
+public class TreeSitterKotlin extends TSLanguage {
+
+    static {
+        NativeUtils.loadLib("lib/tree-sitter-kotlin");
+    }
+    private native static long tree_sitter_kotlin();
+
+    public TreeSitterKotlin() {
+        super(tree_sitter_kotlin());
+    }
+
+    private TreeSitterKotlin(long ptr) {
+        super(ptr);
+    }
+
+    @Override
+    public TSLanguage copy() {
+        return new TreeSitterKotlin(copyPtr());
+    }
+}

tree-sitter-kotlin/src/test/java/org/treesitter/TreeSitterKotlinTest.java

@@ -0,0 +1,14 @@
+
+package org.treesitter;
+
+import org.junit.jupiter.api.Test;
+import org.treesitter.tests.CorpusTest;
+
+import java.io.IOException;
+
+class TreeSitterKotlinTest {
+    @Test
+    void corpusTest() throws IOException {
+        CorpusTest.runAllTestsInDefaultFolder(new TreeSitterKotlin(), "kotlin");
+    }
+}