Function LLVMGetParentCatchSwitch 

pub unsafe extern "C" fn LLVMGetParentCatchSwitch(
    CatchPad: LLVMValueRef,
) -> LLVMValueRef

Get the parent catchswitch instruction of a catchpad instruction.

This only works on llvm::CatchPadInst instructions.

@see llvm::CatchPadInst::getCatchSwitch()