[skrifa] tthint: adjust DELTAP/DELTAC limits #1353
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We limited these to point count/cvt size respectively but there are fonts (Arial is one) where these limits are not sufficient. Notably, you can have one exception per point/entry _and_ ppem so we can't use these counts for hard limits. Instead limit both to `(stack_size / 2)` since each iteration requires two elements from the stack.
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We limited these to point count/cvt size respectively but there are fonts (Arial is one) where these limits are not sufficient. Notably, you can have one exception per point/entry and ppem so we can't use these counts for hard limits.
Instead limit both to
(stack_size / 2)since each iteration requires two elements from the stack.