fix(java-input): fix dup2_x1 stack to regs conversion for wide types (#2755)

jadx-core/src/test/java/jadx/tests/integration/jbc/TestDup2x1.java

@@ -0,0 +1,26 @@
+package jadx.tests.integration.jbc;
+
+import jadx.tests.api.IntegrationTest;
+import jadx.tests.api.extensions.profiles.TestProfile;
+import jadx.tests.api.extensions.profiles.TestWithProfiles;
+
+import static jadx.tests.api.utils.assertj.JadxAssertions.assertThat;
+
+public class TestDup2x1 extends IntegrationTest {
+
+	@SuppressWarnings({ "FieldCanBeLocal", "checkstyle:InnerAssignment", "unused" })
+	public static class TestCls {
+		private long value;
+
+		public long setValue(long v) {
+			return this.value = v;
+		}
+	}
+
+	@TestWithProfiles(TestProfile.JAVA11)
+	public void test() {
+		assertThat(getClassNode(TestCls.class))
+				.code()
+				.containsOne("this.value = v;");
+	}
+}

jadx-plugins/jadx-java-input/src/main/java/jadx/plugins/input/java/data/code/JavaInsnsRegister.java

@@ -310,7 +310,7 @@ public class JavaInsnsRegister {
 			s.peekFrom(4, 8).peekFrom(1, 9);
 		} else {
 			s.insn().setRegsCount(6);
-			s.insert(2, WIDE);
+			s.insert(1, WIDE);
 			s.peekFrom(0, 0).peekFrom(1, 1);
 			s.peekFrom(1, 2).peekFrom(2, 3);
 			s.peekFrom(2, 4).peekFrom(0, 5);