[C++ Patch] PR 70466 ("ICE on invalid code in tree check: expected constructor, have parm_decl in convert_like_real...")

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

Hi,

in this ICE during error recovery, the check in convert_like_real:

        if (CONSTRUCTOR_NELTS (expr) == 0
        && FUNCTION_FIRST_USER_PARMTYPE (convfn) != void_list_node)

is reached for a PARM_DECL as expr. I think that the correct way to 
avoid in general such problem is adding (here too, as elsewhere) a check 
that BRACE_ENCLOSED_INITIALIZER_P (expr) is true to the outer 
conditional, for sure because talking about "converting to %qT from 
initializer list would use explicit constructor %qD", which happens 
anyway in the above conditional, otherwise doesn't make sense. Tested 
x86_64-linux.

Thanks,
Paolo.

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