[NFC-ish] Move printRec()s into ASTDumper

Also tweaks the printing of TypeAttributes and differentiates methods for recursively printing arrays from ones for recursively printing single elements.

Author: beccadax

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;
   }