test: check method override with generic arguments (#701)

jadx-core/src/test/java/jadx/tests/integration/generics/TestGenericsMthOverride.java

+package jadx.tests.integration.generics;
+
+import org.junit.jupiter.api.Test;
+
+import jadx.core.dex.nodes.ClassNode;
+import jadx.tests.api.IntegrationTest;
+
+import static jadx.tests.api.utils.JadxMatchers.containsOne;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+public class TestGenericsMthOverride extends IntegrationTest {
+
+	public static class TestCls {
+		public interface I<X, Y> {
+			Y method(X x);
+		}
+
+		public static class A<X, Y> implements I<X, Y> {
+			@Override
+			public Y method(X x) {
+				return null;
+			}
+		}
+
+		public static class B<X, Y> implements I<X, Y> {
+			@Override
+			public Y method(Object x) {
+				return null;
+			}
+		}
+
+		public static class C<X extends Exception, Y> implements I<X, Y> {
+			@Override
+			public Y method(Exception x) {
+				return null;
+			}
+		}
+
+		public static class D<X, Y> implements I<X, Y> {
+			@Override
+			public Object method(Object x) {
+				return null;
+			}
+		}
+	}
+
+	@Test
+	public void test() {
+		ClassNode cls = getClassNode(TestCls.class);
+		String code = cls.getCode().toString();
+
+		assertThat(code, containsOne("public Y method(X x) {"));
+		assertThat(code, containsOne("public Y method(Object x) {"));
+		assertThat(code, containsOne("public Y method(Exception x) {"));
+		assertThat(code, containsOne("public Object method(Object x) {"));
+	}
+}