DSL EXPRESSION:
for (k, k in @*) {}


AST:
"block" [tt:block] [nt:StatementBlock]
    "for" [tt:kw_for] [nt:ForLoopTwoVariable]
        "k" [tt:non_sigil_name] [nt:LocalVariable]
        "k" [tt:non_sigil_name] [nt:LocalVariable]
        "@*" [tt:full_oosvar] [nt:FullOosvar]
        "block" [tt:block] [nt:StatementBlockInBraces]
            "block" [tt:block] [nt:StatementBlock]

