4c1a94c0d3
This simplifies handle the constructor/member and its corresponding tearoff as a pair. Also it prepare for supporting tearoff of extension type constructors and methods with the same name. TEST=existing Change-Id: Iea6cbc0250c8df6bd0f825068c1f3e865d938427 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324202 Reviewed-by: Srujan Gaddam <srujzs@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Jens Johansen <jensj@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>