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

compiler/testData/diagnostics/tests/secondaryConstructors/redeclarations.fir.kt

@@ -0,0 +1,27 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+class A(x: String = "", y: String = "") {
+    constructor(x: String, y: String): this(x, y)
+    constructor(): this("", "")
+    constructor(): this("", "")
+}
+
+class B {
+    constructor(x: Int)
+}
+
+fun B(x: Int) {}
+
+class Outer {
+    class A(x: String = "", y: String = "") {
+        constructor(x: String, y: String): this(x, y)
+        constructor(): this("", "")
+        constructor(): this("", "")
+    }
+
+    class B {
+        constructor(x: Int)
+    }
+
+    fun B(x: Int) {}
+}