Fix issue for wraped synchronized argument

src/main/java/jadx/codegen/RegionGen.java

@@ -152,7 +152,7 @@ public class RegionGen extends InsnGen {
 	}
 
 	private void makeSynchronizedRegion(SynchronizedRegion cont, CodeWriter code) throws CodegenException {
-		code.startLine("synchronized(").add(arg(cont.getArg())).add(") {");
+		code.startLine("synchronized(").add(arg(cont.getInsn().getArg(0))).add(") {");
 		makeRegionIndent(code, cont.getRegion());
 		code.startLine('}');
 	}

src/main/java/jadx/dex/regions/SynchronizedRegion.java

 package jadx.dex.regions;
 
-import jadx.dex.instructions.args.RegisterArg;
 import jadx.dex.nodes.IContainer;
 import jadx.dex.nodes.IRegion;
+import jadx.dex.nodes.InsnNode;
 
 import java.util.List;
 
 public final class SynchronizedRegion extends AbstractRegion {
 
-	private final RegisterArg arg;
+	private final InsnNode insn;
 	private final Region region;
 
-	public SynchronizedRegion(IRegion parent, RegisterArg arg) {
+	public SynchronizedRegion(IRegion parent, InsnNode insn) {
 		super(parent);
-		this.arg = arg;
+		this.insn = insn;
 		this.region = new Region(this);
 	}
 
-	public RegisterArg getArg() {
-		return arg;
+	public InsnNode getInsn() {
+		return insn;
 	}
 
 	public Region getRegion() {

src/main/java/jadx/dex/visitors/regions/RegionMaker.java

@@ -9,7 +9,7 @@ import jadx.dex.attributes.LoopAttr;
 import jadx.dex.instructions.IfNode;
 import jadx.dex.instructions.InsnType;
 import jadx.dex.instructions.SwitchNode;
-import jadx.dex.instructions.args.RegisterArg;
+import jadx.dex.instructions.args.InsnArg;
 import jadx.dex.nodes.BlockNode;
 import jadx.dex.nodes.IRegion;
 import jadx.dex.nodes.InsnNode;
@@ -269,14 +269,13 @@ public class RegionMaker {
 	private static final Set<BlockNode> cacheSet = new HashSet<BlockNode>();
 
 	private BlockNode processMonitorEnter(IRegion curRegion, BlockNode block, InsnNode insn, RegionStack stack) {
-		RegisterArg arg = (RegisterArg) insn.getArg(0);
-		SynchronizedRegion synchRegion = new SynchronizedRegion(curRegion, arg);
+		SynchronizedRegion synchRegion = new SynchronizedRegion(curRegion, insn);
 		synchRegion.getSubBlocks().add(block);
 		curRegion.getSubBlocks().add(synchRegion);
 
 		Set<BlockNode> exits = new HashSet<BlockNode>();
 		cacheSet.clear();
-		traverseMonitorExits(arg, block, exits, cacheSet);
+		traverseMonitorExits(insn.getArg(0), block, exits, cacheSet);
 
 		block = BlockUtils.getNextBlock(block);
 		BlockNode exit;
@@ -298,7 +297,7 @@ public class RegionMaker {
 	/**
 	 * Traverse from monitor-enter thru successors and collect blocks contains monitor-exit
 	 */
-	private void traverseMonitorExits(RegisterArg arg, BlockNode block, Set<BlockNode> exits, Set<BlockNode> visited) {
+	private void traverseMonitorExits(InsnArg arg, BlockNode block, Set<BlockNode> exits, Set<BlockNode> visited) {
 		visited.add(block);
 		for (InsnNode insn : block.getInstructions()) {
 			if (insn.getType() == InsnType.MONITOR_EXIT