message: Use S' and S'' instead of numbers.
diff: @@ -1219,7 +1219,7 @@ export interface DidChangeTextDocumentParams {
  /**
  * The actual content changes. The content changes describe single state changes
  * to the document. So if there are two content changes c1 and c2 for a document
  - * in state S10 then c1 move the document to S11 and c2 to S12.
  + * in state S then c1 move the document to S' and c2 to S''.
  */
  contentChanges: TextDocumentContentChangeEvent[];
  }
  