[issue #2369] [reproduction-test] inner types not detected as static if in interface/enum.

test/transform/resource/after-delombok/WithNested.java

@@ -0,0 +1,13 @@
+public interface WithNested<Z> {
+	class IAmStaticReally {
+		final String x;
+		@java.lang.SuppressWarnings("all")
+		public IAmStaticReally(final String x) {
+			this.x = x;
+		}
+		@java.lang.SuppressWarnings("all")
+		public WithNested.IAmStaticReally withX(final String x) {
+			return this.x == x ? this : new WithNested.IAmStaticReally(x);
+		}
+	}
+}