Simple test for non-kts script compilation

compiler/testData/codegen/customScript/simple.customext

@@ -0,0 +1,8 @@
+
+// KOTLIN_SCRIPT_DEFINITION: org.jetbrains.kotlin.codegen.TestScriptWithNonKtsExtension
+
+// param: world
+
+val res = "Hello $name"
+
+// expected: res=Hello world

compiler/tests/org/jetbrains/kotlin/codegen/AbstractCustomScriptCodegenTest.kt

@@ -138,3 +138,7 @@ object TestScriptWithSimpleEnvVarsConfiguration : ScriptCompilationConfiguration
 @Suppress("unused")
 @KotlinScript(compilationConfiguration = TestScriptWithSimpleEnvVarsConfiguration::class)
 abstract class TestScriptWithSimpleEnvVars
+
+@Suppress("unused")
+@KotlinScript(extension = "customext")
+abstract class TestScriptWithNonKtsExtension(val name: String)

compiler/tests/org/jetbrains/kotlin/codegen/CustomScriptCodegenTestGenerated.java

@@ -26,16 +26,21 @@ public class CustomScriptCodegenTestGenerated extends AbstractCustomScriptCodege
     }
 
     public void testAllFilesPresentInCustomScript() throws Exception {
-        KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/codegen/customScript"), Pattern.compile("^(.+)\\.kts$"), TargetBackend.ANY, true);
+        KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("compiler/testData/codegen/customScript"), Pattern.compile("^(.*)$"), TargetBackend.ANY, true);
     }
 
     @TestMetadata("simpleEnvVars.kts")
-    public void testSimpleEnvVars() throws Exception {
+    public void testSimpleEnvVars_kts() throws Exception {
         runTest("compiler/testData/codegen/customScript/simpleEnvVars.kts");
     }
 
+    @TestMetadata("simple.customext")
+    public void testSimple_customext() throws Exception {
+        runTest("compiler/testData/codegen/customScript/simple.customext");
+    }
+
     @TestMetadata("stringReceiver.kts")
-    public void testStringReceiver() throws Exception {
+    public void testStringReceiver_kts() throws Exception {
         runTest("compiler/testData/codegen/customScript/stringReceiver.kts");
     }
 }

compiler/tests/org/jetbrains/kotlin/generators/tests/GenerateCompilerTests.kt

@@ -169,7 +169,7 @@ fun main(args: Array<String>) {
         }
 
         testClass<AbstractCustomScriptCodegenTest> {
-            model("codegen/customScript", extension = "kts")
+            model("codegen/customScript", pattern = "^(.*)$")
         }
 
         testClass<AbstractBytecodeTextTest> {