Adds helpers for extracting original name of a lowered late field, the
original initializer and the field used to hold the value of the lowered
field.
This helps backends to customize late field encoding while still using
the lowering provided by the cfe.
Change-Id: Ib42af539efad84a08a6e32acd29d2efaff129cd7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/178989
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Even when non-nullable is enabled by default, enabling the experiment
explicitly should result in the experiment release version (and not
the experiment enabled version) to be used for opting in.
For this change, the semantics of parseExperimentalFlags was change
to _not_ normalize the flags to a full mapping including default values.
For this reason all uses of such maps are renamed to
'explicitExperimentalFlags'.
Closes#43879
Change-Id: I0d0262e68ec1403549abcfd305ae3a4404fe93e3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168654
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Johnni Winther