Another expression with side-effects in table keys and actions

[fruffy]

Just for completeness, another expression that causes a compiler crash in tables is table.apply.hit()

control ingress(inout Headers h, inout Meta m, inout standard_metadata_t sm) {

    table sub_table {
        key = {
            h.eth_hdr.eth_type: exact @name("dummy_name") ;
        }
        actions = {
        }
    }

    table simple_table {
        key = {
            sub_table.apply().hit: exact @name("dummy_name") ;
        }
        actions = {
        }
    }
    apply {
        simple_table.apply();
    }
}

The error is:

FrontEnd_30_SimplifyControlFlow
FrontEnd_31_MoveDeclarations
P4::TypeChecking_0_ResolveReferences
P4::TypeChecking_1_TypeInference
SimplifyDefUse_0_TypeChecking
In file: p4_tv/p4c/frontends/p4/def_use.h:351
Compiler Bug: no definitions found for h.eth_hdr.eth_type

2258c.p4.txt