[FIR-TEST] Move analysis tests to separate module

compiler/fir/analysis-tests/testData/resolve/companionUsesNested.kt

@@ -0,0 +1,18 @@
+abstract class Base {
+    class BaseNested
+}
+
+class Derived : Base() {
+    class DerivedNested
+
+    companion object {
+        val b: BaseNested = BaseNested()
+
+        val d: DerivedNested = DerivedNested()
+
+        fun foo() {
+            val bb: BaseNested = BaseNested()
+            val dd: DerivedNested = DerivedNested()
+        }
+    }
+}