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These methods used equals() comparisons where identity
checks would've sufficient. As expected, this results in a
small but measurable performance increase on both art
& dalvik.

---------------------- After --------------
ART:
    arrayLength    benchmark      us linear runtime
              1 DeepHashCode    8.08 =
              1       Equals   17.68 =
              4 DeepHashCode    8.63 =
              4       Equals   18.20 =
             16 DeepHashCode   19.59 =
             16       Equals   41.19 =
            256 DeepHashCode  255.41 =
            256       Equals  483.61 ==
           2048 DeepHashCode 2321.91 ==============
           2048       Equals 4932.40 ==============================
Dalvik:
    arrayLength    benchmark      us linear runtime
              1 DeepHashCode    32.7 =
              1       Equals    65.3 =
              4 DeepHashCode    34.4 =
              4       Equals    67.7 =
             16 DeepHashCode    76.0 =
        ...