[clang][DeclPrinter] Fix AST print of out-of-line record definitions

DeclPrinter::VisitCXXRecordDecl did not output qualifiers for records.
As result, the output of out-of-line record definitions was incorrect.

Differential Revision: https://reviews.llvm.org/D151528

Author: strimo378

clang/lib/AST/DeclPrinter.cpp

@@ -997,7 +997,10 @@ void DeclPrinter::VisitCXXRecordDecl(CXXRecordDecl *D) {
   prettyPrintAttributes(D);
 
   if (D->getIdentifier()) {
-    Out << ' ' << *D;
+    Out << ' ';
+    if (auto *NNS = D->getQualifier())
+      NNS->print(Out, Policy);
+    Out << *D;
 
     if (auto S = dyn_cast<ClassTemplateSpecializationDecl>(D)) {
       ArrayRef<TemplateArgument> Args = S->getTemplateArgs().asArray();

clang/test/AST/ast-print-record-decl.c

@@ -289,3 +289,19 @@ KW DeclGroupInMemberList {
 
 // A tag decl group in the tag decl's own member list is exercised in
 // defSelfRef above.
+
+
+// Check out-of-line record definition
+#ifdef __cplusplus
+// PRINT-CXX-NEXT: [[KW]] OutOfLineRecord {
+KW OutOfLineRecord {
+  // PRINT-CXX-NEXT: [[KW]] Inner
+  KW Inner;
+  // PRINT-CXX-NEXT: };
+};
+
+// PRINT-CXX-NEXT: [[KW]] OutOfLineRecord::Inner {
+KW OutOfLineRecord::Inner {
+  // PRINT-CXX-NEXT: };
+};
+#endif