[analyzer] [NFC] Prefer make_unique over "new"

[dblaikie]

Looks good - thanks!

clang/lib/StaticAnalyzer/Checkers/RetainCountChecker/RetainCountChecker.cpp

switch (ErrorKind) {
     case RefVal::ErrorDeallocNotOwned:
       if (!deallocNotOwned)
         deallocNotOwned.reset(new DeallocNotOwned(this));
       BT = deallocNotOwned.get();
       break;
   }
 
   assert(BT);
-  auto report = std::unique_ptr<BugReport>(
-      new CFRefReport(*BT, C.getASTContext().getLangOpts(),
-                      SummaryLog, N, Sym));
+  auto report = llvm::make_unique<CFRefReport>(
+      *BT, C.getASTContext().getLangOpts(), SummaryLog, N, Sym);
   report->addRange(ErrorRange);
   C.emitReport(std::move(report));
 }
 
 //===----------------------------------------------------------------------===//
 // Handle the return values of retain-count-related functions.
 //===----------------------------------------------------------------------===//
 
if (RE.getKind() != RetEffect::NoRet) {
       if (hasError) {
         // Generate an error node.
         state = setRefBinding(state, Sym, X);
 
         static CheckerProgramPointTag ReturnOwnLeakTag(this, "ReturnsOwnLeak");
         ExplodedNode *N = C.addTransition(state, Pred, &ReturnOwnLeakTag);
         if (N) {
           const LangOptions &LOpts = C.getASTContext().getLangOpts();
-          C.emitReport(std::unique_ptr<BugReport>(new CFRefLeakReport(
-              *getLeakAtReturnBug(LOpts), LOpts,
-              SummaryLog, N, Sym, C, IncludeAllocationLine)));
+          C.emitReport(llvm::make_unique<CFRefLeakReport>(
+              *getLeakAtReturnBug(LOpts), LOpts, SummaryLog, N, Sym, C,
+              IncludeAllocationLine));
         }
       }
     }
   } else if (X.isReturnedNotOwned()) {
     if (RE.isOwned()) {
       if (X.getIvarAccessHistory() ==
             RefVal::IvarAccessHistory::AccessedDirectly) {
         // Assume the method was trying to transfer a +1 reference from a
         // strong ivar to the caller.
         state = setRefBinding(state, Sym,
                               X.releaseViaIvar() ^ RefVal::ReturnedOwned);
       } else {
         // Trying to return a not owned object to a caller expecting an
         // owned object.
         state = setRefBinding(state, Sym, X ^ RefVal::ErrorReturnedNotOwned);
 
         static CheckerProgramPointTag
             ReturnNotOwnedTag(this, "ReturnNotOwnedForOwned");
 
         ExplodedNode *N = C.addTransition(state, Pred, &ReturnNotOwnedTag);
         if (N) {
           if (!returnNotOwnedForOwned)
             returnNotOwnedForOwned.reset(new ReturnedNotOwnedForOwned(this));
 
-          C.emitReport(std::unique_ptr<BugReport>(new CFRefReport(
+          C.emitReport(llvm::make_unique<CFRefReport>(
               *returnNotOwnedForOwned, C.getASTContext().getLangOpts(),
-              SummaryLog, N, Sym)));
+              SummaryLog, N, Sym));
         }
       }
     }
   }
 }
 
 //===----------------------------------------------------------------------===//
 // Check various ways a symbol can be invalidated.
if (N) {
     else
       os << "but ";
     os << "has a +" << V.getCount() << " retain count";
 
     if (!overAutorelease)
       overAutorelease.reset(new OverAutorelease(this));
 
     const LangOptions &LOpts = Ctx.getASTContext().getLangOpts();
-    Ctx.emitReport(std::unique_ptr<BugReport>(
-        new CFRefReport(*overAutorelease, LOpts,
-                        SummaryLog, N, Sym, os.str())));
+    Ctx.emitReport(llvm::make_unique<CFRefReport>(
+        *overAutorelease, LOpts, SummaryLog, N, Sym, os.str()));
   }
 
   return nullptr;
 }
 
 ProgramStateRef
 RetainCountChecker::handleSymbolDeath(ProgramStateRef state,
                                       SymbolRef sid, RefVal V,
if (N) {
     for (SmallVectorImpl<SymbolRef>::iterator
          I = Leaked.begin(), E = Leaked.end(); I != E; ++I) {
 
       const LangOptions &LOpts = Ctx.getASTContext().getLangOpts();
       CFRefBug *BT = Pred ? getLeakWithinFunctionBug(LOpts)
                           : getLeakAtReturnBug(LOpts);
       assert(BT && "BugType not initialized.");
 
-      Ctx.emitReport(std::unique_ptr<BugReport>(
-          new CFRefLeakReport(*BT, LOpts, SummaryLog, N, *I, Ctx,
-                              IncludeAllocationLine)));
+      Ctx.emitReport(llvm::make_unique<CFRefLeakReport>(
+          *BT, LOpts, SummaryLog, N, *I, Ctx, IncludeAllocationLine));
     }
   }
 
   return N;
 }
 
 static bool isISLObjectRef(QualType Ty) {
   return StringRef(Ty.getAsString()).startswith("isl_");