[XLA] By default, display a detailed breakdown when comparing large literals.

Literal comparison has the option of displaying a "detailed breakdown", which
includes things like the distribution of errors.  Previously, you'd only get
this breakdown if you asked for it, but there are many routines that don't
expose this knob.  We could expose it piecemeal, but I think in general if
you're comparing a "large" literal and you have mismatches, you probably want
this breakdown.  At least, it's not going to be a lot of noise.  So this patch
makes us show the default breakdown by default when the array being compared is
above a certain size.

PiperOrigin-RevId: 230834776