[ORC] Silence a compiler error.

This should fix the builder error at
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/19006

llvm-svn: 327475

diff --git a/llvm/lib/ExecutionEngine/Orc/Core.cpp b/llvm/lib/ExecutionEngine/Orc/Core.cpp
index 95ef620..fd6ec0f 100644 (file)
--- a/llvm/lib/ExecutionEngine/Orc/Core.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/Core.cpp
@@ -362,7 +362,7 @@ Expected<SymbolMap> lookup(const std::vector<VSO *> &VSOs, SymbolNameSet Names,
       PromisedResult.set_value(std::move(*Result));
     else {
       ResolutionError = Result.takeError();
-      PromisedResult.set_value({});
+      PromisedResult.set_value(SymbolMap());
     }
   };
   auto OnReady = [&](Error Err) {