LArrays with the same field name can be constructed without error

[Denis-Titov]

Describe the bug 🐞

Not sure if this is expected but LArray with identical repeated field names can be constructed using code in MWE.

Expected behavior

I would have expected to get an error if LArray has the same field names as if you use the constructor:

julia> LVector(test = 1, test = 2)
ERROR: syntax: keyword argument "test" repeated in call to "LVector" around REPL[7]:1
Stacktrace:
 [1] top-level scope
   @ REPL[7]:1

Minimal Reproducible Example 👇

using LabelledArrays

test_LArray1 = LVector(test = 1)
test_LArray2 = LVector(test = 2)
combined_LArray = [test_LArray1; test_LArray2]
@show combined_LArray

Error & Stacktrace ⚠️
n/a

Environment (please complete the following information):

• Output of using Pkg; Pkg.status()

• Output of using Pkg; Pkg.status(; mode = PKGMODE_MANIFEST)

• Output of versioninfo()

julia> versioninfo()
Julia Version 1.11.1
Commit 8f5b7ca12ad (2024-10-16 10:53 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: macOS (x86_64-apple-darwin22.4.0)
  CPU: 4 × Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, skylake)
Threads: 4 default, 0 interactive, 2 GC (on 4 virtual cores)
Environment:
  JULIA_EDITOR = code
  JULIA_NUM_THREADS = 4

Additional context

Add any other context about the problem here.

[ChrisRackauckas]

not expected. We should validate and error on that.