FIR: Add test on ambiguous vararg

Fix is in the two previous commits

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java

@@ -16235,6 +16235,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/codegen/box/javaInterop"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.JVM_IR, true);
         }
 
+        @TestMetadata("ambiguousJavaVararg.kt")
+        public void testAmbiguousJavaVararg() throws Exception {
+            runTest("compiler/testData/codegen/box/javaInterop/ambiguousJavaVararg.kt");
+        }
+
         @TestMetadata("genericSamProjectedOut.kt")
         public void testGenericSamProjectedOut() throws Exception {
             runTest("compiler/testData/codegen/box/javaInterop/genericSamProjectedOut.kt");

compiler/testData/codegen/box/javaInterop/ambiguousJavaVararg.kt

@@ -0,0 +1,28 @@
+// FILE: JavaInterface.java
+
+public interface JavaInterface {
+    String foo(Object... obj);
+
+    String foo(String... str);
+}
+
+// FILE: JavaClass.java
+
+public class JavaClass implements JavaInterface {
+    public String foo(Object... obj) {
+        return "FAIL";
+    }
+
+    public String foo(String... str) {
+        return "OK";
+    }
+}
+
+// FILE: test.kt
+// TARGET_BACKEND: JVM
+
+class KotlinClass : JavaClass()
+
+fun box(): String {
+    return KotlinClass().foo("alpha", "omega")
+}

compiler/tests-gen/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java

@@ -16235,6 +16235,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/codegen/box/javaInterop"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.JVM, true);
         }
 
+        @TestMetadata("ambiguousJavaVararg.kt")
+        public void testAmbiguousJavaVararg() throws Exception {
+            runTest("compiler/testData/codegen/box/javaInterop/ambiguousJavaVararg.kt");
+        }
+
         @TestMetadata("genericSamProjectedOut.kt")
         public void testGenericSamProjectedOut() throws Exception {
             runTest("compiler/testData/codegen/box/javaInterop/genericSamProjectedOut.kt");

compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -16235,6 +16235,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/codegen/box/javaInterop"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.JVM, true);
         }
 
+        @TestMetadata("ambiguousJavaVararg.kt")
+        public void testAmbiguousJavaVararg() throws Exception {
+            runTest("compiler/testData/codegen/box/javaInterop/ambiguousJavaVararg.kt");
+        }
+
         @TestMetadata("genericSamProjectedOut.kt")
         public void testGenericSamProjectedOut() throws Exception {
             runTest("compiler/testData/codegen/box/javaInterop/genericSamProjectedOut.kt");

compiler/tests-gen/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java

@@ -16235,6 +16235,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             KtTestUtil.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("compiler/testData/codegen/box/javaInterop"), Pattern.compile("^(.+)\\.kt$"), null, TargetBackend.JVM_IR, true);
         }
 
+        @TestMetadata("ambiguousJavaVararg.kt")
+        public void testAmbiguousJavaVararg() throws Exception {
+            runTest("compiler/testData/codegen/box/javaInterop/ambiguousJavaVararg.kt");
+        }
+
         @TestMetadata("genericSamProjectedOut.kt")
         public void testGenericSamProjectedOut() throws Exception {
             runTest("compiler/testData/codegen/box/javaInterop/genericSamProjectedOut.kt");