#2850: swap try-catch and using statement so that exception handling shows the file being decompiled causing the IOException.

ICSharpCode.Decompiler/CSharp/ProjectDecompiler/WholeProjectDecompiler.cs

@@ -259,10 +259,9 @@ namespace ICSharpCode.Decompiler.CSharp.ProjectDecompiler
 						CancellationToken = cancellationToken
 					},
 					delegate (IGrouping<string, TypeDefinitionHandle> file) {
-						using (StreamWriter w = new StreamWriter(Path.Combine(TargetDirectory, file.Key)))
-						{
 						try
 						{
+							using StreamWriter w = new StreamWriter(Path.Combine(TargetDirectory, file.Key));
 							CSharpDecompiler decompiler = CreateDecompiler(ts);
 
 							foreach (var partialType in partialTypes)
@@ -298,7 +297,6 @@ namespace ICSharpCode.Decompiler.CSharp.ProjectDecompiler
 						{
 							throw new DecompilerException(module, $"Error decompiling for '{file.Key}'", innerException);
 						}
-						}
 						progress.Status = file.Key;
 						Interlocked.Increment(ref progress.UnitsCompleted);
 						progressReporter?.Report(progress);