swift

2403e56e - SIL: new "array.end_mutation" and "array.finalize_intrinsic" array semantics

SIL: new "array.end_mutation" and "array.finalize_intrinsic" array semantics Used to "finalize" an array literal. It's not used, yet. So this is NFC. Also handle the "array.finalize_intrinsic" function in various array specific optimizations.