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

compiler/testData/diagnostics/tests/modifiers/defaultModifier.fir.kt

@@ -0,0 +1,55 @@
+companion class A {
+    companion object {
+
+    }
+}
+
+class B {
+    companion object
+
+    val c: Int = 1
+}
+
+class C {
+    companion object A {
+
+    }
+}
+
+class D {
+    companion object A {
+        companion object {
+        }
+    }
+}
+
+companion object G {
+    companion object
+}
+
+companion interface H {
+    companion object
+}
+
+class J {
+    companion object C {
+        companion object
+    }
+}
+
+companion enum class Enum {
+    E1,
+    E2;
+
+    companion object
+}
+
+companion fun main() {
+
+}
+
+companion var prop: Int = 1
+    companion get
+    companion set
+
+class Z(companion val c: Int)