3873   typedef MDFieldImpl ImplTy;  typedef
3891   typedef MDEitherFieldImpl<FieldTypeA, FieldTypeB> ImplTy;  typedef
3923       : ImplTy(Default), Max(Max) {}  in MDUnsignedField()
3982   MDAPSIntField() : ImplTy(APSInt()) {}  in MDAPSIntField()
3990       : ImplTy(Default) {}  in MDSignedField()
3992       : ImplTy(Default), Min(Min), Max(Max) {}  in MDSignedField()
3996   MDBoolField(bool Default = false) : ImplTy(Default) {}  in MDBoolField()
4002   MDField(bool AllowNull = true) : ImplTy(nullptr), AllowNull(AllowNull) {}  in MDField()
4008       : ImplTy(nullptr), AllowEmpty(AllowEmpty) {}  in MDStringField()
4012   MDFieldList() : ImplTy(SmallVector<Metadata *, 4>()) {}  in MDFieldList()
4016   ChecksumKindField(DIFile::ChecksumKind CSKind) : ImplTy(CSKind) {}  in ChecksumKindField()
4021       : ImplTy(MDSignedField(Default), MDField(AllowNull)) {}  in MDSignedOrMDField()
4025       : ImplTy(MDSignedField(Default, Min, Max), MDField(AllowNull)) {}  in MDSignedOrMDField()