[Bug c++/89151] SFINAE-disabled member hides another

[csaba_22 at yahoo dot co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89151

--- Comment #1 from Csaba Ráduly <csaba_22 at yahoo dot co.uk> ---
Created attachment 45585
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45585&action=edit
preprocessor output from -save-temps