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Re: [PATCH] Fix PR middle-end/17813
> Note that for doing low-level debugging of Ada code, you can use
> GDB in C mode without too much trouble, so for working on GCC/GNAT itself,
> the fancy Ada mode features are not strictly necessary.
Of course, but for debugging a miscompilation of the Ada scanner (e.g.
PR middle-end/18045), having "pn" at hand is almost required if you are not
familiar with the internal structure of the front-end (e.g. how to walk the
node hierarchy) like me.