[FIR-TEST] Move analysis tests to separate module

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

@@ -0,0 +1,11 @@
+enum class EC {
+    A, B;
+    companion object {
+        fun u(ec: EC): Boolean {
+            return when (ec) {
+                A -> true
+                B -> false
+            }
+        }
+    }
+}