[LLDB] Migrate llvm::make_unique to std::make_unique

Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.

Differential revision: https://reviews.llvm.org/D66259

llvm-svn: 368933

lldb/source/API/SBBreakpointOptionCommon.cpp

@@ -41,7 +41,7 @@ using namespace lldb_private;
 SBBreakpointCallbackBaton::SBBreakpointCallbackBaton(SBBreakpointHitCallback 
                                                          callback,
                                                      void *baton)
-      : TypedBaton(llvm::make_unique<CallbackData>()) {
+      : TypedBaton(std::make_unique<CallbackData>()) {
     getItem()->callback = callback;
     getItem()->callback_baton = baton;
   }