GROOVY-6082: GroovyResultSet not updateable for Prepared Statements
Added unit tests showing that GC'ed SoftReferences are not cleanup from memoize caches
Fixed cache's SoftReferences instantiation in order to register them in a ReferenceQueue
deactivated tests because they are successful only sometimes on the build server
GROOVY-5445: Make @Delegate delegate to inherited property accessors
GROOVY-5211: Method dispatch error with @Delegate
minor refactor
GROOVY-6087: grape command could provide a resolver option
GROOVY-6086: If two class nodes represent the same array but are distinct (not the same reference), assignment test fails