Backport attemptNarrow from ApplicativeError to scala_2.11

[gagandeepkalra]

addresses #3143

[codecov-io]

Codecov Report

Merging #3289 into scala_2.11 will decrease coverage by 0.01%.
The diff coverage is 100%.

@@              Coverage Diff               @@
##           scala_2.11    #3289      +/-   ##
==============================================
- Coverage       93.45%   93.44%   -0.02%     
==============================================
  Files             384      384              
  Lines            7155     7156       +1     
  Branches          198      198              
==============================================
  Hits             6687     6687              
- Misses            468      469       +1

Impacted Files	Coverage Δ
.../src/main/scala/cats/syntax/applicativeError.scala	100% <100%> (ø)	⬆️
core/src/main/scala/cats/data/NonEmptyList.scala	98.66% <0%> (-0.67%)	⬇️

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