internal_reference_types

[Andreas Schwab]

The function internal_reference_types appears to have been introduced
exclusively for the Ada frontend.  It is responsible for PR70759 (ada
rts doesn't build with -mabi=ilp32).  What purpose does it serve and
what breaks when it is removed?  The history doesn't give any hints.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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