[PM] Consistently use curly braces rather than std::make_pair in AnalysisResults.find().

[silvas]

This is fine, but you can use post-commit review on this kind of thing.

llvm/trunk/include/llvm/IR/PassManager.h

void clear(IRUnitT &IR) {
     // Clear all the invalidated results associated specifically with this
     // function.
     SmallVector<AnalysisKey *, 8> InvalidatedIDs;
     auto ResultsListI = AnalysisResultLists.find(&IR);
     if (ResultsListI == AnalysisResultLists.end())
       return;
     // Clear the map pointing into the results list.
     for (auto &IDAndResult : ResultsListI->second)
-      AnalysisResults.erase(std::make_pair(IDAndResult.first, &IR));
+      AnalysisResults.erase({IDAndResult.first, &IR});
 
     // And actually destroy and erase the results associated with this IR.
     AnalysisResultLists.erase(ResultsListI);
   }
 
   /// \brief Clear the analysis result cache.
   ///
   /// This routine allows cleaning up when the set of IR units itself has
if (Inserted) {
       auto &P = this->lookupPass(ID);
       if (DebugLogging)
         dbgs() << "Running analysis: " << P.name() << "\n";
       AnalysisResultListT &ResultList = AnalysisResultLists[&IR];
       ResultList.emplace_back(ID, P.run(IR, *this, ExtraArgs...));
 
       // P.run may have inserted elements into AnalysisResults and invalidated
       // RI.
-      RI = AnalysisResults.find(std::make_pair(ID, &IR));
+      RI = AnalysisResults.find({ID, &IR});
       assert(RI != AnalysisResults.end() && "we just inserted it!");
 
       RI->second = std::prev(ResultList.end());
     }
 
     return *RI->second->second;
   }
 
   /// \brief Get a cached analysis result or return null.
   ResultConceptT *getCachedResultImpl(AnalysisKey *ID, IRUnitT &IR) const {
     typename AnalysisResultMapT::const_iterator RI =
-        AnalysisResults.find(std::make_pair(ID, &IR));
+        AnalysisResults.find({ID, &IR});
     return RI == AnalysisResults.end() ? nullptr : &*RI->second->second;
   }
 
   /// \brief Invalidate a function pass result.
   void invalidateImpl(AnalysisKey *ID, IRUnitT &IR) {
     typename AnalysisResultMapT::iterator RI =
-        AnalysisResults.find(std::make_pair(ID, &IR));
+        AnalysisResults.find({ID, &IR});
     if (RI == AnalysisResults.end())
       return;
 
     if (DebugLogging)
       dbgs() << "Invalidating analysis: " << this->lookupPass(ID).name()
              << "\n";
     AnalysisResultLists[&IR].erase(RI->second);
     AnalysisResults.erase(RI);