Add virtual destructor. Whoops!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145044 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CaptureTracking.cpp b/lib/Analysis/CaptureTracking.cpp
index 9be0097..03bd70d 100644
--- a/lib/Analysis/CaptureTracking.cpp
+++ b/lib/Analysis/CaptureTracking.cpp
@@ -19,6 +19,8 @@
 #include "llvm/Analysis/CaptureTracking.h"
 using namespace llvm;
 
+CaptureTracker::~CaptureTracker() {}
+
 namespace {
   struct SimpleCaptureTracker : public CaptureTracker {
     explicit SimpleCaptureTracker(bool ReturnCaptures)