Use std::make_pair instead of std::pair's ctor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60205 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/BasicStore.cpp

@@ -68,7 +68,7 @@ public:
 
   std::pair<const GRState*, SVal> 
   CastRegion(const GRState* St, SVal VoidPtr, QualType CastToTy, Stmt* CastE) {
-    return std::pair<const GRState*, SVal>(St, UnknownVal());
+    return std::make_pair(St, UnknownVal());
   }
 
   

lib/Analysis/RegionStore.cpp

@@ -364,12 +364,11 @@ RegionStoreManager::CastRegion(const GRState* St, SVal VoidPtr,
     const ElementRegion* ER = MRMgr.getElementRegion(Idx, TR);
 
     // Add a RegionView to base region.
-    return std::pair<const GRState*, SVal>(AddRegionView(St, TR, AR), 
-                                           loc::MemRegionVal(ER));
+    return std::make_pair(AddRegionView(St, TR, AR), loc::MemRegionVal(ER));
   }
 
   // Default case.
-  return std::pair<const GRState*, SVal>(St, UnknownVal());
+  return std::make_pair(St, UnknownVal());
 }
 
 SVal RegionStoreManager::Retrieve(Store S, Loc L, QualType T) {