Re: [C++ Patch] PR 78344 ("ICE on invalid c++ code (tree check: expected tree_list, have error_mark in cp_check_const_attributes, at cp/decl2.c:1347")

[Paolo Carlini <paolo dot carlini at oracle dot com>]

Hi again,

thus the below is a rather "dull" solution at the level of 
cplus_decl_attributes itself: cp_check_const_attributes is tweaked to 
check for error_mark_node at each outer iteration and consistently 
return a bool, which is then checked by the caller in order to possibly 
bail out (this is similar to the check_for_bare_parameter_packs call a 
few lines before). Testing is Ok on x86_64-linux.

Thanks,
Paolo.

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