Fixed verbatim identifier location.

ICSharpCode.NRefactory.CSharp/Ast/Identifier.cs

@@ -127,7 +127,7 @@ namespace ICSharpCode.NRefactory.CSharp
 			if (string.IsNullOrEmpty(name))
 				return Identifier.Null;
 			if (name[0] == '@')
-				return new Identifier (name.Substring (1), location) { IsVerbatim = true };
+				return new Identifier (name.Substring (1), new TextLocation (location.Line, location.Column + 1)) { IsVerbatim = true };
 			else
 				return new Identifier (name, location);
 		}

ICSharpCode.NRefactory.Tests/CSharp/Parser/Expression/IdentifierExpressionTests.cs

@@ -98,5 +98,17 @@ namespace ICSharpCode.NRefactory.CSharp.Parser.Expression
 					}
 				}.IsMatch(ident));
 		}
+
+		
+		[Test]
+		public void TestVerbatimIdentifier()
+		{
+			var tree = SyntaxTree.Parse ("class @foo {}");
+			var ident = tree.GetNodeAt<Identifier> (1, 8);
+			Assert.IsNotNull (ident);
+			Assert.IsTrue (ident.IsVerbatim);
+			Assert.AreEqual (new TextLocation (1, 7), ident.StartLocation);
+			Assert.AreEqual (new TextLocation (1, 11), ident.EndLocation);
+		}
 	}
 }