Minor fixes for type stability

[thofma]

No description provided.

[StevellM]

Is there a specific reason to change all the @assert all(-bla-) into loops of assertions ?

[thofma]

Type stability (JuliaLang/julia#15276). There might be a different way to do which is less intrusive. I will explore it a bit more.

[codecov]

Codecov Report

Patch coverage: 95.23% and project coverage change: -0.05% ⚠️

Comparison is base (dbb4f5a) 74.42% compared to head (2920683) 74.38%.
Report is 1 commits behind head on master.

❗ Current head 2920683 differs from pull request most recent head abf062f. Consider uploading reports for the commit abf062f to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1189      +/-   ##
==========================================
- Coverage   74.42%   74.38%   -0.05%     
==========================================
  Files         346      346              
  Lines      110725   110719       -6     
==========================================
- Hits        82411    82353      -58     
- Misses      28314    28366      +52     

Files Changed	Coverage Δ
src/QuadForm/QuadBin.jl	85.41% <66.66%> (-0.17%)	⬇️
src/QuadForm/Quad/GenusRep.jl	87.77% <100.00%> (+0.05%)	⬆️
src/QuadForm/Quad/ZGenus.jl	94.25% <100.00%> (ø)

... and 25 files with indirect coverage changes

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