[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/testsWithStdLib/duplicateJvmSignature/jvmNamesDuplicate.fir.kt

@@ -0,0 +1,53 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+@JvmName("bar")
+fun foo(a: Any) {}
+
+fun bar(a: Any) {}
+
+class C {
+    @JvmName("foo1")
+    fun foo(list: List<Int>) {}
+
+    @JvmName("foo1")
+    fun foo(list: List<String>) {}
+}
+
+// Conflicts in inheritance.
+
+// A1 -> B1 with accidental override
+
+open class A1 {
+    @JvmName("bar")
+    open fun foo() {}
+}
+
+class B1 : A1() {
+    fun bar() {}
+}
+
+// A2 -> B2 with intended override and conflicting JVM declarations
+
+open class A2 {
+    @JvmName("bar")
+    open fun foo() {}
+}
+
+class B2 : A2() {
+    override fun foo() {}
+
+    fun bar() {}
+}
+
+// A3 -> B3 -> C3 with accidental override
+
+open class A3 {
+    @JvmName("bar")
+    open fun foo() {}
+}
+
+open class B3: A3() {
+}
+
+class C3: B3() {
+    fun bar() {}
+}