tsconfig.json mixed content support

src/server/protocol.ts

@@ -914,6 +914,10 @@ namespace ts.server.protocol {
          * List of removed files
          */
         removed: string[];
+        /**
+         * List of updated files
+         */
+        updated: string[];
     }
 
     /**
@@ -986,6 +990,11 @@ namespace ts.server.protocol {
          * The format options to use during formatting and other code editing features.
          */
         formatOptions?: FormatCodeSettings;
+
+        /**
+         * The host's supported file extension mappings
+         */
+        fileExtensionMap?: FileExtensionMap;
     }
 
     /**