Even in debug builds: catch decompiler exceptions when no debugger is attached.

ILSpy/TextView/DecompilerTextView.cs

@@ -264,21 +264,31 @@ namespace ICSharpCode.ILSpy.TextView
 			
 			Thread thread = new Thread(new ThreadStart(
 				delegate {
+					#if DEBUG
+					if (Debugger.IsAttached) {
 						try {
 							AvalonEditTextOutput textOutput = new AvalonEditTextOutput();
 							textOutput.LengthLimit = outputLengthLimit;
 							DecompileNodes(context, textOutput);
 							textOutput.PrepareDocument();
 							tcs.SetResult(textOutput);
-						#if DEBUG
 						} catch (AggregateException ex) {
 							tcs.SetException(ex);
 						} catch (OperationCanceledException ex) {
 							tcs.SetException(ex);
-						#else
+						}
+					} else
+						#endif
+					{
+						try {
+							AvalonEditTextOutput textOutput = new AvalonEditTextOutput();
+							textOutput.LengthLimit = outputLengthLimit;
+							DecompileNodes(context, textOutput);
+							textOutput.PrepareDocument();
+							tcs.SetResult(textOutput);
 						} catch (Exception ex) {
 							tcs.SetException(ex);
-						#endif
+						}
 					}
 				}));
 			thread.Start();