Mark regex-unicode-CaseInsensitive-all-*.js tests as Slow and increase timeout. Fixes #2440
Mark regex-unicode-CaseInsensitive-all-*.js tests as Slow and increase timeout. Fixes #2440

Interpreted mode runs close to 60 seconds on OS X test machines and there's no need to have these in non-Slow test runs.

mrkmarron/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore