Re: suppress_checking

[Richard Stallman]

    AFAICS, the !ENABLE_CHECKING version of CHECK does evaluate (check)
    too, so the side effects are intended.

You are right, as regards CHECK by itself.

However, eassert is what the code really uses, and that is a different
story.  When !ENABLE_CHECKING, eassert does not compute the condition
expression at all.

So we might as well make CHECK not compute the condition expression
either.  Which means that it might as well test suppress_checking
first.