{"ast_node_type":"other","tokens":[{"end":115,"kind":"keyword","start":0,"text":"//!"}]}
//! but for array/slice operations it only has to worry about `Operand::Uninit`. That makes the value part trivial,
//! For OpTy, the custom thing on field pojections has to be pretty clever (since `Operand::Immediate` can have fields),
//! but we still need to do bounds checking and adjust the layout. To not duplicate that with MPlaceTy, we actually