-- in.cue --
issue595: {
    // NOTE: this should eval with an EVAL error, not
    // an incomplete error. See Issue #595.
    #cfgs: [{
        name: "foo"
    }]
    for cfg in #cfgs {
        files: cfg.nam
    }
}
-- out/eval --
Errors:
issue595.files: undefined field: nam:
    ./in.cue:8:20

Result:
(_|_){
  // [eval]
  issue595: (_|_){
    // [eval]
    #cfgs: (#list){
      0: (#struct){
        name: (string){ "foo" }
      }
    }
    files: (_|_){
      // [eval] issue595.files: undefined field: nam:
      //     ./in.cue:8:20
    }
  }
}
-- out/compile --
--- in.cue
{
  issue595: {
    #cfgs: [
      {
        name: "foo"
      },
    ]
    for _, cfg in 〈0;#cfgs〉 {
      files: 〈1;cfg〉.nam
    }
  }
}