Fix read of uninitialized enum value in test, caught by UBSan. No functionality
change, other than removal of undefined behavior.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187465 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTReader.cpp b/lib/Serialization/ASTReader.cpp
index e2a57f3..ec7051e 100644
--- a/lib/Serialization/ASTReader.cpp
+++ b/lib/Serialization/ASTReader.cpp
@@ -7498,7 +7498,7 @@
     NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0),
     TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0),
     PassingDeclsToConsumer(false),
-    NumCXXBaseSpecifiersLoaded(0)
+    NumCXXBaseSpecifiersLoaded(0), ReadingKind(Read_None)
 {
   SourceMgr.setExternalSLocEntrySource(this);
 }