dotted getindex has wrong error in the REPL

[KristofferC]

This looks odd (this has now been fixed):

jjulia> sum.[1]
ERROR: MethodError: no method matching getproperty(::typeof(sum), ::Expr)
Closest candidates are:
  getproperty(::Any, ::Symbol) at sysimg.jl:18

julia> Base.getproperty(::typeof(sum), ::Expr) = "Hello"

julia> sum.[1]
"Hello"

julia> foo() = sum.[1]
ERROR: syntax: invalid syntax sum.[1]

Also (not fixed):

julia> sum.[1]
ERROR: MethodError: no method matching getproperty(::typeof(sum), ::Expr)
Closest candidates are:
  getproperty(::Any, ::Symbol) at sysimg.jl:18

julia> Base.getproperty(::typeof(sum), ::Expr) = "Hello"

julia> sum.[1]
"Hello"

julia> foo() = sum.[1]
ERROR: syntax: invalid syntax sum.[1]

[stevengj]

Possibly a recently introduced problem? 4d71641 works fine for me. Running a bisect now.

[KristofferC]

#26723 maybe, just a guess

[stevengj]

Bisect is blaming d6c78ab, cc @Keno

Actually there is a build failure at that point on my machine. It looks like the bug is anywhere from that commit to 10776d9. But in any case it looks like the problem was introduced by #26726 (which probably should have been squashed so as not to break bisect).

[Keno]

Taking a look. A bit of a confusing failure mode for that change to have introduced.

[Keno]

Looks like, this was caused by #26486, particularly the . fast-path in the interpreter.

[KristofferC]

Reopening due to #26742 (comment)