Replace the hand-written header flag formatting for elements and
fragments with writeHeaderFlags(...flagsForTesting). This makes the
printed output come from the same generated flag definitions as the
element model instead of maintaining separate lists of writeIf calls.
Mark computed element flags such as hasDefaultValue, hasInitializer, and
hasNonFinalField in the generated metadata, and add the missing
generated overrides needed to expose them through flagsForTesting. This
also lets the shared path report flags such as isSimplyBounded and
hasEnclosingTypeParameterReference consistently.
Because hasNonFinalField now needs to round-trip through bundles for
enums, update the bundle reader and writer and bump the data version.
Change-Id: I7c126fe4bc69fd6b191f339ddc420b05cd8b5ee7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/495860
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
Konstantin Shcheglov
91af82981b