fixup attributes

Author: siegfriedpammer

ICSharpCode.Decompiler/CSharp/Syntax/AstNode.cs

@@ -37,7 +37,7 @@
 
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
-	[DecompilerAstNode(true)]
+	[DecompilerAstNode(hasNullNode: true)]
 	public abstract partial class AstNode : AbstractAnnotatable, IFreezable, INode, ICloneable
 	{
 		// the Root role must be available when creating the null nodes, so we can't put it in the Roles class

ICSharpCode.Decompiler/CSharp/Syntax/AstType.cs

@@ -28,7 +28,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// A type reference in the C# AST.
 	/// </summary>
-	[DecompilerAstNode(true)]
+	[DecompilerAstNode(hasNullNode: true)]
 	public abstract partial class AstType : AstNode
 	{
 		#region PatternPlaceholder

ICSharpCode.Decompiler/CSharp/Syntax/CSharpModifierToken.cs

@@ -31,7 +31,7 @@
 
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class CSharpModifierToken : CSharpTokenNode
 	{
 		Modifiers modifier;

ICSharpCode.Decompiler/CSharp/Syntax/CSharpTokenNode.cs

@@ -34,7 +34,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <remarks>
 	/// In all non null c# token nodes the Role of a CSharpToken must be a TokenRole.
 	/// </remarks>
-	[DecompilerAstNode(true)]
+	[DecompilerAstNode(hasNullNode: true)]
 	public partial class CSharpTokenNode : AstNode
 	{
 		public override NodeType NodeType {

ICSharpCode.Decompiler/CSharp/Syntax/ComposedType.cs

@@ -34,7 +34,7 @@
 
 namespace ICSharpCode.Decompiler.CSharp.Syntax
 {
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class ComposedType : AstType
 	{
 		public static readonly Role<AttributeSection> AttributeRole = EntityDeclaration.AttributeRole;
@@ -231,7 +231,7 @@ public override ITypeReference ToTypeReference(NameLookupMode lookupMode, Intern
 	/// <summary>
 	/// [,,,]
 	/// </summary>
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class ArraySpecifier : AstNode
 	{
 		public override NodeType NodeType {

ICSharpCode.Decompiler/CSharp/Syntax/DocumentationReference.cs

@@ -23,7 +23,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// Represents a 'cref' reference in XML documentation.
 	/// </summary>
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class DocumentationReference : AstNode
 	{
 		public static readonly Role<AstType> DeclaringTypeRole = new Role<AstType>("DeclaringType", AstType.Null);

ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousMethodExpression.cs

@@ -32,7 +32,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// [async] delegate(Parameters) {Body}
 	/// </summary>
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class AnonymousMethodExpression : Expression
 	{
 		public readonly static TokenRole DelegateKeywordRole = new TokenRole("delegate");

ICSharpCode.Decompiler/CSharp/Syntax/Expressions/AnonymousTypeCreateExpression.cs

@@ -30,7 +30,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// new { [ExpressionList] }
 	/// </summary>
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class AnonymousTypeCreateExpression : Expression
 	{
 		public readonly static TokenRole NewKeywordRole = new TokenRole("new");

ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayCreateExpression.cs

@@ -22,7 +22,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// new Type[Dimensions]
 	/// </summary>
-	[DecompilerAstNode(false)]
+	[DecompilerAstNode(hasNullNode: false)]
 	public partial class ArrayCreateExpression : Expression
 	{
 		public readonly static TokenRole NewKeywordRole = new TokenRole("new");

ICSharpCode.Decompiler/CSharp/Syntax/Expressions/ArrayInitializerExpression.cs

@@ -31,7 +31,7 @@ namespace ICSharpCode.Decompiler.CSharp.Syntax
 	/// <summary>
 	/// { Elements }
 	/// </summary>
-	[DecompilerAstNode(true)]
+	[DecompilerAstNode(hasNullNode: true)]
 	public partial class ArrayInitializerExpression : Expression
 	{
 		/// <summary>