[lldb] [llvm] [MC] Move MCTargetOptions pointer from MCContext to MCAsmInfo (PR #180464)

[Fangrui Song via llvm-commits]

MaskRay wrote:

> I'm not sure all the fields in MCTargetOptions logically make sense in MCAsmInfo. Many, but not all of them seem out of place

MCAsmInfo just stores a pointer. The motivation is that createMCAsmInfo already takes a `MCTargetOptions` parameter. Both MIPS (for target ABI) and X86 (for `llvm-ml`) 's `createMCAsmInfo` use the parameter. If the target `MCAsmInfo` needs customization, taking `MCTargetOptions` is a natural choice. Then it's a natural choice for `MCContext` take the stored `MCTargetOptions` pointer in MCAsmInfo instead of from its own ctor.

https://github.com/llvm/llvm-project/pull/180464