Otherwise, yamlize in YAMLTraits.h might be wrongly defined. This makes some AMDGPU tests fail when LLVM_LINK_LLVM_DYLIB is set. Differential Revision: https://reviews.llvm.org/D30508 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@299415 91177308-0d34-0410-b5e6-96231b3b80d8