swift

68d37e14 - [no-implicit-copy] Add a new instruction called MarkMustCheckInst and use it in the move checker.

[no-implicit-copy] Add a new instruction called MarkMustCheckInst and use it in the move checker. This is an instruction that I am going to use to drive some of the ownership based dataflow optimizations that I am writing now. The instruction contains a kind that allows one to know what type of checking is required and allows the need to add a bunch of independent instructions for independent checkers. Each checker is responsible for removing all of its own mark instructions. NOTE: MarkMustCheckInst is only allowed in Raw SIL since once we are in Canonical SIL we want to ensure that all such checking has already occurred.