bisectable6

query

class Foo {has $.a; method test {$.a = 5}}; my $f = Foo.new; $f.test; say $f.a;

result

¦«2015.12,2016.01.1,2016.02,2016.03,2016.04,2016.05,2016.06,2016.07.1,
  2016.08.1,2016.09,2016.10,2016.11,2016.12,2017.01,2017.02,2017.03,
  2017.04.3,2017.05,0c16bb2^»:
Cannot modify an immutable Any
  in method test at /tmp/x3Qbm9MTSR line 1
  in block <unit> at /tmp/x3Qbm9MTSR line 1

 «exit code = 1»
¦«0c16bb2,2017.06,2017.07,2017.08,2017.09,2017.10,2017.11,2017.12,2018.01,
  2018.02.1,2018.03,2018.04.1,2018.05,2018.06,2018.08,2018.09,2018.10,
  e675849^»:
Cannot modify an immutable Any ((Any))
  in method test at /tmp/x3Qbm9MTSR line 1
  in block <unit> at /tmp/x3Qbm9MTSR line 1

 «exit code = 1»
¦«e675849,2018.11,2018.12,2019.03.1,2019.07.1,2019.11,2020.01,2020.02.1,
  2020.05.1,2020.06,2020.07,2020.08.2,2020.09,2020.10,2020.11,2020.12,
  2021.02.1,2021.03,2021.04,2021.05,2021.06,2021.07,2021.08,2021.09,
  2021.10,2021.12,2022.02,2022.03,2022.04,2022.06,2022.07,2022.12,2023.02,
  2023.04,2023.05,2023.06,2023.08,2023.09,2023.10,2023.11,2023.12,2024.01,
  2024.02,2024.03,2024.04,2024.05,2024.06,2024.07,2024.08,2024.09,2024.10,
  2024.12,2025.01»:
Cannot modify an immutable 'Any' type object
  in method test at /tmp/x3Qbm9MTSR line 1
  in block <unit> at /tmp/x3Qbm9MTSR line 1

 «exit code = 1»
¦«a6608c2,2025.02,2025.03,2025.04,2025.05,2025.06.1,2025.08,2025.10,
  2025.11,2025.12,2026.01,2026.02,2026.03,HEAD(1e93528)»:
(Any)

¦«a6608c2^»:
Cannot assign to a readonly variable or a value
  in method test at /tmp/x3Qbm9MTSR line 1
  in block <unit> at /tmp/x3Qbm9MTSR line 1

 «exit code = 1»