set max_methods = 1 for REPL methods

[KristofferC]

The REPL is a quite frequent source of invalidations since it is somewhat badly typed and a lot of it is precompiled into the sysimage. It is also fairly performance insensitive so all this abstract inference is unlikely to be useful. Therefore, lower max_methods for the REPL module to cause fewer invalidations.

[vtjnash]

CI failed, but only on Windows?

Error in testset REPL:
Error During Test at C:\buildkite-agent\builds\win2k22-amdci6-1\julialang\julia-master\julia-819e84fcac\share\julia\test\testdefs.jl:21
  Got exception outside of a @test
  LoadError: return type REPL.LineEdit.InputAreaState does not match inferred return type Any
  Stacktrace:
    [1] error(s::String)
      @ Base .\error.jl:35
    [2] (::Main.Test89Main_REPL.LineEditTest.var"#48#49")()
      @ Main.Test89Main_REPL.LineEditTest C:\buildkite-agent\builds\win2k22-amdci6-1\julialang\julia-master\julia-819e84fcac\share\julia\stdlib\v1.10\REPL\test\lineedit.jl:484
    [3] withenv(f::Main.Test89Main_REPL.LineEditTest.var"#48#49", keyvals::Pair{String, String})
      @ Base .\env.jl:235
    [4] top-level scope
      @ C:\buildkite-agent\builds\win2k22-amdci6-1\julialang\julia-master\julia-819e84fcac\share\julia\stdlib\v1.10\REPL\test\lineedit.jl:477
    [5] include(mod::Module, _path::String)
      @ Base .\Base.jl:456
    [6] include(x::String)
      @ Main.Test89Main_REPL.LineEditTest C:\buildkite-agent\builds\win2k22-amdci6-1\julialang\julia-master\julia-819e84fcac\share\julia\stdlib\v1.10\REPL\test\runtests.jl:12
    [7] top-level scope
      @ C:\buildkite-agent\builds\win2k22-amdci6-1\julialang\julia-master\julia-819e84fcac\share\julia\stdlib\v1.10\REPL\test\runtests.jl:13

[KristofferC]

Windows have more methods defined for something, or?

[KristofferC]

The last commit should have addressed the Windows failure (ispty failed to infer which is only defined on Windows).