An identifier that specifies the address space that some operation
should operate on. Special address spaces have an effect on code generation,
depending on the target and the address spaces it implements.
Information about the ABI of a function’s argument, or return value.
A function ABI definition.
The layout of a type in memory.
The layout of a type, alongside the type itself.
Inclusive wrap-around range of valid values (bitwise representation), that is, if
start > end, it represents start..=MAX
, followed by 0..=end
.