panic from named option::run

[coryb]

Input:

fs default() {
  image "alpine:latest"
  run "pwd" with myopt
}

option::run myopt() {
  dir "/tmp"
}

Error:

$ ./hlb run ./tests/bug.hlb
panic: unknown with option kind

goroutine 1 [running]:
github.com/openllb/hlb/codegen.(*CodeGen).EmitWithOption(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b620, 0xc000443810, 0xc000453b40, 0x19c79a8, 0xc00025ea28, 0x101671f, 0xd, ...)
        /go/src/hlb/codegen/codegen.go:429 +0x206
github.com/openllb/hlb/codegen.(*CodeGen).EmitFilesystemChainStmt(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b620, 0x198a535, 0x2, 0xc000443810, 0x19c79a8, 0xc000595ec0, 0x0, ...)
        /go/src/hlb/codegen/codegen.go:440 +0xa5
github.com/openllb/hlb/codegen.(*CodeGen).EmitChainStmt(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b620, 0x198a535, 0x2, 0xc000443810, 0x19c79a8, 0x0, 0x19c79a8, ...)
        /go/src/hlb/codegen/codegen.go:196 +0x9c
github.com/openllb/hlb/codegen.(*CodeGen).EmitBlock(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b620, 0x198a535, 0x2, 0xc000433ff0, 0x2, 0x2, 0x19c79a8, ...)
        /go/src/hlb/codegen/codegen.go:171 +0x611
github.com/openllb/hlb/codegen.(*CodeGen).EmitFilesystemBlock(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b620, 0xc000433ff0, 0x2, 0x2, 0x19c79a8, 0x0, 0x0, ...)
        /go/src/hlb/codegen/codegen.go:221 +0xd7
github.com/openllb/hlb/codegen.(*CodeGen).EmitFuncDecl(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b5e0, 0xc00047bf80, 0xc00025f8c8, 0x0, 0x0, 0x19c79a8, 0xc00044ab50, ...)
        /go/src/hlb/codegen/decl.go:45 +0x2ac
github.com/openllb/hlb/codegen.(*CodeGen).EmitFilesystemFuncDecl(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00059b5e0, 0xc00047bf80, 0xc00025f8c8, 0x19c79a8, 0x0, 0x0, 0x0, ...)
        /go/src/hlb/codegen/decl.go:56 +0xba
github.com/openllb/hlb/codegen.(*CodeGen).Generate(0xc000433f40, 0x1ac19c0, 0xc000452940, 0xc00025f8c8, 0xc00030ae10, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
        /go/src/hlb/codegen/codegen.go:71 +0x2dc
github.com/openllb/hlb.Compile.func1(0xc0000a0cc0, 0xc00025f628)
        /go/src/hlb/hlb.go:74 +0x12a
github.com/docker/buildx/util/progress.Write(0x1abb240, 0xc00059b780, 0xc000370f20, 0x19, 0xc00025f830)
        /go/pkg/mod/github.com/docker/buildx@v0.3.1/util/progress/writer.go:32 +0x257
github.com/openllb/hlb.Compile(0x1ac19c0, 0xc000452940, 0xc000010868, 0xc000464360, 0x198d93b, 0x7, 0x1aa9ec0, 0xc000010838, 0x0, 0x0, ...)
        /go/src/hlb/hlb.go:86 +0x637
github.com/openllb/hlb/cmd/hlb/command.Run(0x1ac19c0, 0xc000452940, 0xc000010868, 0x1ab5e40, 0xc000010838, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
        /go/src/hlb/cmd/hlb/command/run.go:143 +0x2cd
github.com/openllb/hlb/cmd/hlb/command.glob..func5(0xc000452900, 0x0, 0x0)
        /go/src/hlb/cmd/hlb/command/run.go:71 +0x53c
github.com/urfave/cli/v2.(*Command).Run(0x2073fa0, 0xc0004525c0, 0x0, 0x0)
        /go/pkg/mod/github.com/urfave/cli/v2@v2.1.1/command.go:161 +0x4e0
github.com/urfave/cli/v2.(*App).RunContext(0xc000001c80, 0x1ac1a00, 0xc0000380c8, 0xc0000321b0, 0x3, 0x3, 0x0, 0x0)
        /go/pkg/mod/github.com/urfave/cli/v2@v2.1.1/app.go:302 +0x814
github.com/urfave/cli/v2.(*App).Run(...)
        /go/pkg/mod/github.com/urfave/cli/v2@v2.1.1/app.go:211
main.main()
        /go/src/hlb/cmd/hlb/main.go:12 +0x67