Don't ignore non-void returns

libs/UIX.DecompXml/Decompiler.Script.cs

@@ -55,8 +55,6 @@ partial class Decompiler
                     // End of function
                     if (i + 1 != methodBody.Length)
                         throw new InvalidOperationException("Expected end of function!");
-
-                    break;
                 }
             }
 
@@ -186,6 +184,11 @@ partial class Decompiler
                         );
                         break;
 
+                    case OpCode.ReturnValue:
+                        var returnStatement = ReturnStatement(IrisExpression.ToSyntax(stack.Pop(), _context));
+                        blockStack.Peek().Statements.Add(returnStatement);
+                        break;
+
                     case not OpCode.ReturnVoid:
                         if (!TryDecompileExpression(instruction, stack, blockStack))
                         {

test/STYLES_decomp.uix

@@ -850,12 +850,14 @@
         {
             // Unsupported instruction: CSYM 63
             ;
+            return source;
         } // TODO: JMP 170
     }// Unsupported instruction: VTC 960
     ;
     source = FrameBackgrounds.get_Item(DefaultBackgroundIndex).Value;
     // Unsupported instruction: CSYM 63
     ;
+    return source;
 }</Script>
     </Scripts>
   </Class>