Fix #1365: Finalize method missing custom attributes.

ICSharpCode.Decompiler.Tests/TypeSystem/TypeSystemLoaderTests.cs

@@ -140,7 +140,7 @@ namespace ICSharpCode.Decompiler.Tests.TypeSystem
 			Assert.IsFalse(method.IsVirtual);
 			Assert.IsFalse(method.IsStatic);
 			Assert.AreEqual(0, method.Parameters.Count);
-			Assert.AreEqual(0, method.GetAttributes().Count());
+			Assert.AreEqual(1, method.GetAttributes().Count());
 			Assert.IsTrue(method.HasBody);
 			Assert.IsNull(method.AccessorOwner);
 		}

ICSharpCode.Decompiler.Tests/TypeSystem/TypeSystemTestCase.cs

@@ -35,6 +35,7 @@ namespace ICSharpCode.Decompiler.Tests.TypeSystem
 		public void Method() { }
 
 		public SimplePublicClass() { }
+		[Double(1)]
 		~SimplePublicClass() { }
 	}
 

ICSharpCode.Decompiler/CSharp/Syntax/TypeSystemAstBuilder.cs

@@ -1358,6 +1358,8 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 		DestructorDeclaration ConvertDestructor(IMethod dtor)
 		{
 			DestructorDeclaration decl = new DestructorDeclaration();
+			if (ShowAttributes)
+				decl.Attributes.AddRange(ConvertAttributes(dtor.GetAttributes()));
 			if (dtor.DeclaringTypeDefinition != null)
 				decl.Name = dtor.DeclaringTypeDefinition.Name;
 			if (AddResolveResultAnnotations) {