Potential repl bug

[timfennis]

Raw dump of repl

λ let data = read_file("gone_checked.csv");
λ [line.split(",").map(last).int for line in data.lines]
error[vm]: arg 0: expected list, got String
  ┌─ <repl:2>:1:18
  │
1 │ [line.split(",").map(last).int for line in data.lines]
  │                  ^^^ related to this

λ [line.split(",") .map(last).int for line in data.lines[1..]]
error[vm]: arg 0: expected string, got ()
  ┌─ <repl:3>:1:50
  │
1 │ [line.split(",") .map(last).int for line in data.lines[1..]]
  │                                                  ^^^^^ related to this

λ data.lines
error[vm]: arg 0: expected string, got Function(String) -> List<String>
  ┌─ <repl:4>:1:6
  │
1 │ data.lines
  │      ^^^^^ related to this

λ lines(dat)
error[resolver]: Identifier dat has not previously been declared
  ┌─ <repl:5>:1:7
  │
1 │ lines(dat)
  │       ^^^ related to this

λ lines(data)
error[vm]: arg 0: expected string, got Function(String) -> List<String>
  ┌─ <repl:6>:1:1
  │
1 │ lines(data)
  │ ^^^^^ related to this

λ data

thread 'main' (1828837) panicked at ndc_vm/src/vm.rs:200:47:
index out of bounds: the len is 0 but the index is 0
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Shit  ndc
λ

I'm able to reproduce this bug if I set data to "a,b,c\na,b,c\n"