Fix `angleValidator` reference and lint @this (#515)
Fix `angleValidator` reference and lint @this (#515)


LLK/scratch-blocks,sclements/scratch-blocks,griffpatch/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,LLK/scratch-blocks,sclements/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks,gengshenghong/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,sclements/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,LLK/scratch-blocks,sclements/scratch-blocks,sclements/scratch-blocks