Mark __does_policy_contain as 'inline'. Thanks to Chongyu Zhu for the catch

llvm-svn: 193962
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 222d1c7f139b68c37f5a848a03cec8114bdbffe8
diff --git a/include/future b/include/future
index 7561d19..6604683 100644
--- a/include/future
+++ b/include/future
@@ -2331,7 +2331,7 @@
     }
 };
 
-bool __does_policy_contain(launch __policy, launch __value )
+inline bool __does_policy_contain(launch __policy, launch __value )
 { return (int(__policy) & int(__value)) != 0; }
 
 template <class _Fp, class... _Args>