don't split attribute fragments with a separate typeIdentifier fragment

rdar://104930571

Author: QuietMisdreavus

lib/SymbolGraphGen/DeclarationFragmentPrinter.cpp

@@ -136,7 +136,8 @@ void DeclarationFragmentPrinter::printStructurePre(PrintStructureKind Kind,
 void DeclarationFragmentPrinter::printTypeRef(Type T, const TypeDecl *RefTo,
     Identifier Name,
     PrintNameContext NameContext) {
-  openFragment(FragmentKind::TypeIdentifier);
+  if (Kind != FragmentKind::Attribute)
+    openFragment(FragmentKind::TypeIdentifier);
   printText(Name.str());
   USR.clear();
 

test/SymbolGraph/Symbols/Mixins/DeclarationFragments/Full/CustomAttr.swift

@@ -32,11 +32,7 @@ public func wrapped(@SomeWrapper arg: Int) {}
 // CHECK-NEXT:  },
 // CHECK-NEXT:  {
 // CHECK-NEXT:    "kind": "attribute",
-// CHECK-NEXT:    "spelling": "@"
-// CHECK-NEXT:  },
-// CHECK-NEXT:  {
-// CHECK-NEXT:    "kind": "typeIdentifier",
-// CHECK-NEXT:    "spelling": "SomeWrapper",
+// CHECK-NEXT:    "spelling": "@SomeWrapper",
 // CHECK-NEXT:    "preciseIdentifier": "s:10CustomAttr11SomeWrapperV"
 // CHECK-NEXT:  },
 // CHECK-NEXT:  {