Crystal 1.8 : Enumerable(Range) error

[hutou]

The following code compiles

class Test(T)
  def initialize(@sources : Enumerable(T))
    @count = @sources.size
  end
end
p! Test.new(1..3)

Running the binary gives the following error message:

Test.new(1..3) # => Invalid memory access (signal 11) at address 0x0
[0x56474885c666] *Exception::CallStack::print_backtrace:Nil +118 in ./range
[0x56474884bdd6] ~procProc(Int32, Pointer(LibC::SiginfoT), Pointer(Void), Nil) +310 in ./range
[0x7fac7266cf50] ?? +140378630442832 in /usr/lib/libc.so.6
[0x564748872b63] *Slice(T)::new:read_only<Pointer(UInt8), Int32, Bool>:Slice(UInt8) +35 in ./range
[0x5647488685c5] *String#to_slice:Slice(UInt8) +37 in ./range
[0x564748871538] *String#to_sIO::FileDescriptor:Nil +24 in ./range
[0x5647488c33fb] *IO::FileDescriptor +27 in ./range
Erreur de segmentation (core dumped)

This refers to #13121

[beta-ziliani]

Duplicate of #10518

[straight-shoota]

For the record: This has nothing to do with #13121. The code already fails with 1.7.3.