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JoostK 7fb4309cca perf(common): code size reduction of ngFor directive (#44315 )

This commit makes several changes to the implementation of `NgForOf` to
reduce its code size in production builds:

1. The tailor-made message for an unsupported differ is fully
   tree-shaken in production builds, in favor of the exception from the
   differ factory itself.
2. The private `_perViewChange` method was changed into a free-standing
   function, to allow its name to be minimized.
3. The need for an intermediate `RecordViewTuple` was avoided by
   applying the operation in-place, instead of collecting all insertions
   into a buffer first. This is safe as the `_perViewChange` operation
   that used to be done on each `RecordViewTuple` is entirely local to
   the tuple itself. Hence, it is invariant to execution ordering which
   means that the `_perViewChange` can be executed directly during the
   `forEachOperation` loop.

PR Close #44315

2021-12-02 09:25:45 -08:00