Read/write instantiated-from-member of EnumDecl for PCH.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107662 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReaderDecl.cpp b/lib/Frontend/PCHReaderDecl.cpp
index 595a87b..25d16f8e 100644
--- a/lib/Frontend/PCHReaderDecl.cpp
+++ b/lib/Frontend/PCHReaderDecl.cpp
@@ -178,7 +178,8 @@
   ED->setPromotionType(Reader.GetType(Record[Idx++]));
   ED->setNumPositiveBits(Record[Idx++]);
   ED->setNumNegativeBits(Record[Idx++]);
-  // FIXME: C++ InstantiatedFrom
+  ED->setInstantiationOfMemberEnum(
+                         cast_or_null<EnumDecl>(Reader.GetDecl(Record[Idx++])));
 }
 
 void PCHDeclReader::VisitRecordDecl(RecordDecl *RD) {
diff --git a/lib/Frontend/PCHWriterDecl.cpp b/lib/Frontend/PCHWriterDecl.cpp
index 983d6db..f1adc5b 100644
--- a/lib/Frontend/PCHWriterDecl.cpp
+++ b/lib/Frontend/PCHWriterDecl.cpp
@@ -178,7 +178,7 @@
   Writer.AddTypeRef(D->getPromotionType(), Record);
   Record.push_back(D->getNumPositiveBits());
   Record.push_back(D->getNumNegativeBits());
-  // FIXME: C++ InstantiatedFrom
+  Writer.AddDeclRef(D->getInstantiatedFromMemberEnum(), Record);
   Code = pch::DECL_ENUM;
 }