Enhancements

• Introduce ParseTraversalPartial, which allows traversals that include the splat ([*]) index operator. (#673)
• ext/dynblock: Now accepts marked values in for_each, and will transfer those marks (as much as technically possible) to values in the generated blocks. (#679)

Bugs Fixed

• Expression evaluation will no longer panic if the splat operator is applied to an unknown value that has cty marks. (#678)