Project: mule
Issue MULE-7948: Perform spike on upgrading XPath function
Perform a spike on upgrading our XPath support following these requirements: * Support Xpath2 * Provide a new xpath2() MEL function which behaves more consistently than its current brother and deprecates it * Can be leveraged to other transformers or elements currently present in Mule (research which ones) * Be backwards compatible with Mule 3.5.x
Story points: 8