Fixed codegen for 'depend' clause

467c95dbd1ef080ff4672d10f164367a52b90339 by Alexey Bataev
Small improvements for 'depend' clause, etc.

Small improvements for 'depend' clause, couple perf improvements for 'for'
directive and bugfix for VLA capturing

47c90595adcc31d595aabd4db09894b23cbaafd2 by Alexey Bataev