[NFC-ish] Overhaul ASTDumper

include/swift/AST/Attr.h

@@ -2438,6 +2438,9 @@ class TypeAttributes {
   llvm::iterator_range<iterator> getCustomAttrs() const {
     return llvm::make_range(iterator(CustomAttrs), iterator());
   }
+
+  void print(llvm::raw_ostream &OS) const;
+  void print(ASTPrinter &Printer, const PrintOptions &Options) const;
 };
 
 void simple_display(llvm::raw_ostream &out, const DeclAttribute *attr);

include/swift/AST/Decl.h

@@ -6776,6 +6776,8 @@ enum class CtorInitializerKind {
   Factory
 };
 
+StringRef getCtorInitializerKindString(CtorInitializerKind value);
+
 /// Specifies the kind of initialization call performed within the body
 /// of the constructor, e.g., self.init or super.init.
 enum class BodyInitKind {

include/swift/AST/ExtInfo.h

@@ -281,6 +281,9 @@ template <typename Repr> constexpr bool shouldStoreClangType(Repr repr) {
   llvm_unreachable("Unhandled SILFunctionTypeRepresentation.");
 }
 
+StringRef
+getSILFunctionTypeRepresentationString(SILFunctionTypeRepresentation value);
+
 // MARK: - ASTExtInfoBuilder
 /// A builder type for creating an \c ASTExtInfo.
 ///

include/swift/AST/Import.h

@@ -56,6 +56,9 @@ inline bool isScopedImportKind(ImportKind importKind) {
   return importKind != ImportKind::Module;
 }
 
+StringRef getImportKindString(ImportKind importKind);
+Optional<StringRef> getImportKindKeyword(ImportKind importKind);
+
 /// Possible attributes for imports in source files.
 enum class ImportFlags {
   /// The imported module is exposed to anyone who imports the parent module.

include/swift/AST/PrintOptions.h

@@ -368,6 +368,10 @@ struct PrintOptions {
   /// Whether we are printing part of SIL body.
   bool PrintInSILBody = false;
 
+  /// Whether we should print an @opened(...) attr on archetypes. Ignored and
+  /// treated as `true` if PrintForSIL is set.
+  bool PrintOpenedTypeAttr = false;
+
   /// Whether to use an empty line to separate two members in a single decl.
   bool EmptyLineBetweenMembers = false;
 

include/swift/AST/ProtocolConformanceRef.h

@@ -135,8 +135,6 @@ class ProtocolConformanceRef {
   void dump(llvm::raw_ostream &out, unsigned indent = 0,
             bool details = true) const;
 
-  void print(llvm::raw_ostream &out) const;
-
   bool operator==(ProtocolConformanceRef other) const {
     return Union == other.Union;
   }

include/swift/AST/Types.h

@@ -2561,6 +2561,8 @@ enum class MetatypeRepresentation : char {
   Last_MetatypeRepresentation = ObjC
 };
 
+StringRef getMetatypeRepresentationString(MetatypeRepresentation value);
+
 /// AnyMetatypeType - A common parent class of MetatypeType and
 /// ExistentialMetatypeType.
 class AnyMetatypeType : public TypeBase {