[clike mode] Add new C# keywords

Author: DoctorKrolic

mode/clike/clike.js

@@ -512,8 +512,8 @@ CodeMirror.defineMode("clike", function(config, parserConfig) {
     name: "clike",
     keywords: words("abstract as async await base break case catch checked class const continue" +
                     " default delegate do else enum event explicit extern finally fixed for" +
-                    " foreach goto if implicit in interface internal is lock namespace new" +
-                    " operator out override params private protected public readonly ref return sealed" +
+                    " foreach goto if implicit in init interface internal is lock namespace new" +
+                    " operator out override params private protected public readonly record ref required return sealed" +
                     " sizeof stackalloc static struct switch this throw try typeof unchecked" +
                     " unsafe using virtual void volatile while add alias ascending descending dynamic from get" +
                     " global group into join let orderby partial remove select set value var yield"),
@@ -522,7 +522,7 @@ CodeMirror.defineMode("clike", function(config, parserConfig) {
                  " UInt64 bool byte char decimal double short int long object"  +
                  " sbyte float string ushort uint ulong"),
     blockKeywords: words("catch class do else finally for foreach if struct switch try while"),
-    defKeywords: words("class interface namespace struct var"),
+    defKeywords: words("class interface namespace record struct var"),
     typeFirstDefinitions: true,
     atoms: words("true false null"),
     hooks: {