* Implement `IaddCin`, `IaddCout`, and `IaddCarry` for Cranelift interpreter
Implemented the following Opcodes for the Cranelift interpreter:
- `IaddCin` to add two scalar integers with an input carry flag.
- `IaddCout` to add two scalar integers and report overflow with the carry flag.
- `IaddCarry` to add two scalar integers with an input carry flag, reporting overflow with the output carry flag.
Copyright (c) 2021, Arm Limited
* Simplify carry check + add i64 `IaddCarry` tests
Copyright (c) 2021, Arm Limited
* Move tests to `runtests`
Copyright (c) 2021, Arm Limited
4378ea8e01