[cfe-dev] Expr#isIntegerConstantExpr and friends need some love?

[Noel Grandin via cfe-dev]

Hi

I use these methods quite a bit while writing clang plugins for
LibreOffice, and (when they work), they are incredibly useful.

Unfortunately, they have proved to be extremely crash-prone, meaning that I
either surround them with overly-heaving checks to prevent hitting bad
paths into clang, or I have to bypass checking various files.

As a stress test, I would suggest that a plugin that just runs these
methods on every single Expr* node while compiling something interesting
would very quickly flush out the problem areas.

Regards, Noel Grandin
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