Fix warnings with 32bit builds

[crleona]

Fix additional warnings with 32 bit builds

[codecov-io]

Codecov Report

Merging #59 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #59   +/-   ##
=======================================
  Coverage   92.79%   92.79%           
=======================================
  Files          44       44           
  Lines        2594     2594           
=======================================
  Hits         2407     2407           
  Misses        187      187

Impacted Files	Coverage Δ
LayoutTestTests/TestHelpersTests.m	84.08% <100%> (ø)	⬆️
LayoutTestTests/FrameComparisonTests.m	100% <100%> (ø)	⬆️
LayoutTestBase/Config/LYTConfig.m	100% <100%> (ø)	⬆️
LayoutTest/TestCase/LYTLayoutTestCase.m	91.72% <100%> (ø)	⬆️

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