Added some keyword access properties.

ICSharpCode.NRefactory/CSharp/Ast/Expressions/AnonymousMethodExpression.cs

@@ -39,11 +39,23 @@ namespace ICSharpCode.NRefactory.CSharp
 			get; set;
 		}
 		
+		public CSharpTokenNode DelegateKeyword {
+			get { return GetChildrenByRole (Roles.Keyword); }
+		}
+		
+		public CSharpTokenNode LPar {
+			get { return GetChildrenByRole (Roles.LPar); }
+		}
+		
 		public IEnumerable<ParameterDeclaration> Parameters {
 			get { return GetChildrenByRole (Roles.Parameter); }
 			set { SetChildrenByRole (Roles.Parameter, value); }
 		}
 		
+		public CSharpTokenNode RPar {
+			get { return GetChildrenByRole (Roles.RPar); }
+		}
+		
 		public BlockStatement Body {
 			get { return GetChildByRole (Roles.Body); }
 			set { SetChildByRole (Roles.Body, value); }

ICSharpCode.NRefactory/CSharp/Ast/Expressions/AsExpression.cs

@@ -36,6 +36,10 @@ namespace ICSharpCode.NRefactory.CSharp
 			set { SetChildByRole(Roles.Expression, value); }
 		}
 		
+		public CSharpTokenNode AsKeyword {
+			get { return GetChildrenByRole (Roles.Keyword); }
+		}
+		
 		public AstType Type {
 			get { return GetChildByRole (Roles.Type); }
 			set { SetChildByRole(Roles.Type, value); }

ICSharpCode.NRefactory/CSharp/Ast/Expressions/AssignmentExpression.cs

@@ -46,6 +46,10 @@ namespace ICSharpCode.NRefactory.CSharp
 			set { SetChildByRole(LeftRole, value); }
 		}
 		
+		public CSharpTokenNode OperatorToken {
+			get { return GetChildByRole (OperatorRole); }
+		}
+		
 		public Expression Right {
 			get { return GetChildByRole (RightRole); }
 			set { SetChildByRole(RightRole, value); }

ICSharpCode.NRefactory/CSharp/Ast/Expressions/BinaryOperatorExpression.cs

@@ -45,6 +45,10 @@ namespace ICSharpCode.NRefactory.CSharp
 			set { SetChildByRole(LeftRole, value); }
 		}
 		
+		public CSharpTokenNode OperatorToken {
+			get { return GetChildByRole (OperatorRole); }
+		}
+		
 		public Expression Right {
 			get { return GetChildByRole (RightRole); }
 			set { SetChildByRole(RightRole, value); }