fix: don't inline anonymous in self inner class (#1645)

jadx-core/src/main/java/jadx/core/dex/visitors/ProcessAnonymous.java

@@ -222,6 +222,10 @@ private static MethodNode checkUsage(ClassNode cls) {
 			// exclude self usage
 			return null;
 		}
+		if (ctrUseCls.getTopParentClass().equals(cls)) {
+			// exclude usage inside inner classes
+			return null;
+		}
 		for (MethodNode mth : cls.getMethods()) {
 			if (mth == ctr) {
 				continue;

jadx-core/src/test/java/jadx/tests/integration/inner/TestAnonymousClass20.java

@@ -0,0 +1,39 @@
+package jadx.tests.integration.inner;
+
+import org.junit.jupiter.api.Test;
+
+import jadx.api.JadxInternalAccess;
+import jadx.api.JavaClass;
+import jadx.core.dex.attributes.AType;
+import jadx.core.dex.nodes.ClassNode;
+import jadx.tests.api.IntegrationTest;
+
+import static jadx.tests.api.utils.assertj.JadxAssertions.assertThat;
+
+public class TestAnonymousClass20 extends IntegrationTest {
+
+	@SuppressWarnings({ "unused", "checkstyle:TypeName", "Convert2Lambda", "Anonymous2MethodRef" })
+	public static class Test$Cls {
+		public Runnable test() {
+			return new Runnable() {
+				@Override
+				public void run() {
+					new Test$Cls();
+				}
+			};
+		}
+	}
+
+	@Test
+	public void test() {
+		ClassNode cls = getClassNode(Test$Cls.class);
+		assertThat(cls.get(AType.ANONYMOUS_CLASS)).isNull();
+
+		JavaClass javaClass = JadxInternalAccess.convertClassNode(jadxDecompiler, cls);
+		assertThat(javaClass.getTopParentClass()).isEqualTo(javaClass);
+
+		assertThat(cls)
+				.code()
+				.containsOne("new TestAnonymousClass20$Test$Cls();");
+	}
+}