Add annotations on local function parameter declarations

ICSharpCode.Decompiler/CSharp/CSharpDecompiler.cs

@@ -1473,15 +1473,7 @@ namespace ICSharpCode.Decompiler.CSharp
 
 				if (entityDecl != null)
 				{
-					int i = 0;
+					AddAnnotationsToDeclaration(method, entityDecl, function);
-					var parameters = function.Variables.Where(v => v.Kind == VariableKind.Parameter).ToDictionary(v => v.Index);
-					foreach (var parameter in entityDecl.GetChildrenByRole(Roles.Parameter))
-					{
-						if (parameters.TryGetValue(i, out var v))
-							parameter.AddAnnotation(new ILVariableResolveResult(v, method.Parameters[i].Type));
-						i++;
-					}
-					entityDecl.AddAnnotation(function);
 				}
 
 				var localSettings = settings.Clone();
@@ -1541,6 +1533,19 @@ namespace ICSharpCode.Decompiler.CSharp
 			}
 		}
 
+		internal static void AddAnnotationsToDeclaration(IMethod method, EntityDeclaration entityDecl, ILFunction function)
+		{
+			int i = 0;
+			var parameters = function.Variables.Where(v => v.Kind == VariableKind.Parameter).ToDictionary(v => v.Index);
+			foreach (var parameter in entityDecl.GetChildrenByRole(Roles.Parameter))
+			{
+				if (parameters.TryGetValue(i, out var v))
+					parameter.AddAnnotation(new ILVariableResolveResult(v, method.Parameters[i].Type));
+				i++;
+			}
+			entityDecl.AddAnnotation(function);
+		}
+
 		internal static void CleanUpMethodDeclaration(EntityDeclaration entityDecl, BlockStatement body, ILFunction function, bool decompileBody = true)
 		{
 			if (function.IsIterator)

ICSharpCode.Decompiler/CSharp/StatementBuilder.cs

@@ -1368,6 +1368,7 @@ namespace ICSharpCode.Decompiler.CSharp
 					method.Modifiers |= Modifiers.Extern;
 				}
 
+				CSharpDecompiler.AddAnnotationsToDeclaration(function.ReducedMethod, method, function);
 				CSharpDecompiler.CleanUpMethodDeclaration(method, method.Body, function, function.Method.HasBody);
 				CSharpDecompiler.RemoveAttribute(method, KnownAttribute.CompilerGenerated);
 				var stmt = new LocalFunctionDeclarationStatement(method);