Base: Replace many 1-arg `@assert`s with 2-arg (#61230)
These `@assert`s are not directly problematic for `--trim` (thanks to an
overload / monkey patch it does), but they can cause false positives for
dynamic dispatches in JET and similar tools so it's probably best to
replace them with the 2-arg variant (which just needs to print a String,
rather than an `Expr` containing arbitrary Julia objects)
