QL: fix ql/non-doc-block in QL-for-QL

Author: erik-krogh

ql/ql/src/codeql_ql/ast/Ast.qll

@@ -1877,13 +1877,13 @@ class BinOpExpr extends TBinOpExpr, Expr {
   /** Gets the left operand of the binary expression. */
   Expr getLeftOperand() { none() } // overriden in subclasses
 
-  /* Gets the right operand of the binary expression. */
+  /** Gets the right operand of the binary expression. */
   Expr getRightOperand() { none() } // overriden in subclasses
 
   /** Gets the operator of the binary expression. */
   FunctionSymbol getOperator() { none() } // overriden in subclasses
 
-  /* Gets an operand of the binary expression. */
+  /** Gets an operand of the binary expression. */
   final Expr getAnOperand() { result = this.getLeftOperand() or result = this.getRightOperand() }
 }