Fix hasAdjacentKeywordInEvaluationPath optimisation

[justin-tay]

Closes #1123

This fixes the incorrect logic for determining if there is a change in the instance location.

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.12%. Comparing base (48ca3c2) to head (ee91182).
Report is 60 commits behind head on master.

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Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1124      +/-   ##
============================================
- Coverage     78.90%   78.12%   -0.78%     
- Complexity     1965     2071     +106     
============================================
  Files           172      201      +29     
  Lines          6352     6881     +529     
  Branches       1255     1262       +7     
============================================
+ Hits           5012     5376     +364     
- Misses          867     1034     +167     
+ Partials        473      471       -2     

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[Whathecode]

That was quick! Great work, @justin-tay !