Merge pull request #94 from fschneidereit/master

C# syntax highlighting: added support for the nameof keyword.

Author: dgrunwald

ICSharpCode.AvalonEdit/Highlighting/Resources/CSharp-Mode.xshd

@@ -27,7 +27,8 @@
 	<Color name="GetSetAddRemove" foreground="SaddleBrown" exampleText="int Prop { get; set; }"/>
 	<Color name="TrueFalse" fontWeight="bold" foreground="DarkCyan" exampleText="b = false; a = true;" />
 	<Color name="TypeKeywords" fontWeight="bold" foreground="DarkCyan" exampleText="if (x is int) { a = x as int; type = typeof(int); size = sizeof(int); c = new object(); }"/>
-	
+	<Color name="SemanticKeywords" fontWeight="bold" foreground="DarkCyan" exampleText="if (args == null) throw new ArgumentNullException(nameof(args));" />
+
 	<Property name="DocCommentMarker" value="///" />
 
 	<RuleSet name="CommentMarkerSet">
@@ -280,7 +281,11 @@
 			<Word>null</Word>
 			<Word>value</Word>
 		</Keywords>
-		
+
+		<Keywords color="SemanticKeywords">
+			<Word>nameof</Word>
+		</Keywords>
+
 		<!-- Mark previous rule-->
 		<Rule color="MethodCall">
 		\b