Better optimisation of container size/array contains builtin ops, to avoid need to featch whole array
Better optimisation of container size/array contains builtin ops,
to avoid need to featch whole array

git-svn-id: 5c5d4d05764b309717456521a0ecedbfaae86899@10800 dc4e9af1-7f46-4ead-bba6-71afc04862de

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