Kallen Tu
7a82e8e995
Support `checkedExplicitCasts`,`checkedImplicitDowncasts`, `checkedParameters`, `jsNumbers`, and `nativeNumbers`. dart2js and DDC configs should support `jsNumbers`. dart2js and dart2wasm (both optimized) do not support checked parameters nor implicit downcasts checks. dart2wasm optimized does not support explicit cast checks. This CL adds these features and makes sure certain configs are opting into these features. Bug: https://github.com/dart-lang/sdk/issues/54798 Change-Id: If61d513569259317b1fb89c27d3fd97e3542697d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/352103 Reviewed-by: Sigmund Cherem <sigmund@google.com> Reviewed-by: Nate Bosch <nbosch@google.com> Commit-Queue: Kallen Tu <kallentu@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com>