Add explicit keywords, and fix a minor typo that they uncovered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45034 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/IPA/Andersens.cpp b/lib/Analysis/IPA/Andersens.cpp
index cc7ad7e..474781f 100644
--- a/lib/Analysis/IPA/Andersens.cpp
+++ b/lib/Analysis/IPA/Andersens.cpp
@@ -246,7 +246,7 @@
       // Used for work list prioritization.
       unsigned Timestamp;
 
-      Node(bool direct = true) :
+      explicit Node(bool direct = true) :
         Val(0), Edges(0), PointsTo(0), OldPointsTo(0), 
         PointerEquivLabel(0), LocationEquivLabel(0), PredEdges(0),
         ImplicitPredEdges(0), PointedToBy(0), NumInEdges(0),