@benchmarkset breaks on ^C

[LilithHafner]

When I interrupt @benchmarksuite it is permanently broken:

julia> @benchmarkset "suite" for k in 1:50000
             @case "case $k" rand($k, $k)
       end
^CERROR: InterruptException:
Stacktrace:
 [1] eval
   @ ./boot.jl:373 [inlined]
 [2] generate_benchmark_definition(eval_module::Any, out_vars::Any, setup_vars::Any, quote_vars::Any, quote_vals::Any, core::Any, setup::Any, teardown::Any, params::Any)
   @ BenchmarkTools ~/.julia/packages/BenchmarkTools/SnZV6/src/execution.jl:482

julia> @benchmarkset "suite" for k in 1:5
             @case "case $k" rand($k, $k)
       end

julia>