[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
diff --git a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
index 551ef90..73ee7073 100644
--- a/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
+++ b/lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp
@@ -590,7 +590,7 @@
          "How did we create compile units without a base address?");
 
   SupportFileMap map;
-  data.line_table_up = llvm::make_unique<LineTable>(&cu);
+  data.line_table_up = std::make_unique<LineTable>(&cu);
   std::unique_ptr<LineSequence> line_seq_up(
       data.line_table_up->CreateLineSequenceContainer());
   llvm::Optional<addr_t> next_addr;