GROOVY-5996: Sql#executeInsert does not return list of auto-generated keys
GROOVY-5996: Sql#executeInsert does not return list of auto-generated keys (also vararg variant)
Merge pull request #425 from paulk-asert/groovy5996

GROOVY-5996: Sql#executeInsert does not return list of auto-generated ke...
GROOVY-6821: Fix access to outer class method inside special constructor call