Skip name= header if ObjCClass/Foreign TypeRef name is empty

A minor cosmetic change when dumping typerefs.

Author: bitjammer

include/swift/Reflection/TypeRef.h

@@ -551,13 +551,15 @@ class PrintTypeRef : public TypeRefVisitor<PrintTypeRef, void> {
 
   void visitForeignClassTypeRef(const ForeignClassTypeRef *F) {
     printHeader("foreign");
-    printField("name", F->getName());
+    if (!F->getName().empty())
+      printField("name", F->getName());
     OS << ')';
   }
 
   void visitObjCClassTypeRef(const ObjCClassTypeRef *OC) {
     printHeader("objective-c-class");
-    printField("name", OC->getName());
+    if (!OC->getName().empty())
+      printField("name", OC->getName());
     OS << ')';
   }