Stabilize buffer and parser APIs

typings/xterm.d.ts

@@ -649,9 +649,7 @@ declare module 'xterm' {
     readonly cols: number;
 
     /**
-     * (EXPERIMENTAL) The terminal's current buffer, this might be either the
-     * normal buffer or the alt buffer depending on what's running in the
-     * terminal.
+     * Access to the terminal's normal and alt buffer.
      */
     readonly buffer: IBufferNamespace;
 
@@ -662,8 +660,7 @@ declare module 'xterm' {
     readonly markers: ReadonlyArray<IMarker>;
 
     /**
-     * (EXPERIMENTAL) Get the parser interface to register
-     * custom escape sequence handlers.
+     * Get the parser interface to register custom escape sequence handlers.
      */
     readonly parser: IParser;