Fix Lookup_struct_type returning bad field_names pointer
Fix Lookup_struct_type returning bad field_names pointer

git-svn-id: 66c46d074550470b4f853818beaedd63f976600a@11082 dc4e9af1-7f46-4ead-bba6-71afc04862de

basheersubei/swift-t,basheersubei/swift-t,swift-lang/swift-t,blue42u/swift-t,swift-lang/swift-t,blue42u/swift-t,basheersubei/swift-t,JohnPJenkins/swift-t,basheersubei/swift-t,basheersubei/swift-t,JohnPJenkins/swift-t,swift-lang/swift-t,JohnPJenkins/swift-t,JohnPJenkins/swift-t,JohnPJenkins/swift-t,blue42u/swift-t,JohnPJenkins/swift-t,swift-lang/swift-t,blue42u/swift-t,blue42u/swift-t,JohnPJenkins/swift-t,swift-lang/swift-t,blue42u/swift-t,swift-lang/swift-t,basheersubei/swift-t,blue42u/swift-t,basheersubei/swift-t,swift-lang/swift-t