Backport a 1.10 implementation for LinearAlgebra.diagind

[lkdvos]

This provides a simple backwards fix of the LTS implementation of eachstoredindex(::Diagonal).

See also ITensor/BlockSparseArrays.jl#32

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 62.54%. Comparing base (3d774aa) to head (02ba823).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/wrappers.jl	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #23      +/-   ##
==========================================
- Coverage   62.98%   62.54%   -0.45%     
==========================================
  Files           6        6              
  Lines         281      283       +2     
==========================================
  Hits          177      177              
- Misses        104      106       +2     

Flag	Coverage Δ
docs	62.41% <0.00%> (-0.45%)	⬇️

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[mtfishman]

Looks like a reasonable fix to me, can you add back the corresponding tests that were marked as broken in #31?

[lkdvos]

Yes, but that is in BlockSparseArrays, so this needs to first get merged :)

[mtfishman]

Yes, but that is in BlockSparseArrays, so this needs to first get merged :)

Ah, right, I wasn't paying attention haha.