[PATCH] c++: Avoid access check for dependent lookup result [PR124983]

[Odysseas Georgoudis]

Hi,

This fixes PR c++/124983 by postponing access checks for dependent
declarations until substitution, avoiding the ICE during typo correction.

Tested on x86_64-pc-linux-gnu with no unexpected failures.

Thanks,
Odysseas

PR124983.patch
Description: PR124983.patch