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While looking into #66323 I noticed that the constructor methods of the
classes in ext/intl like IntlDateFormatter and NumberFormatter return NULL
when encountering errors like illegal timezones instead of FALSE as
suggested by the manual.
Other OO-style parts of the core like DateTime also seem to be using mostly
FALSE in such situations. Fixing intl will result in a slight BC wreakage,
which makes me wonder if that's worth it. What's the general opinion?
- Martin