[MINOR][TEST] Fix class name for Pandas UDF tests#20489

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icexelloss wants to merge 2 commits intoapache:masterfrom

icexelloss:fix-scalar-udf-tests

Commits on Feb 2, 2018

Fix name of ScalarPandasUDFTests
icexelloss
committed

Commits on Feb 6, 2018

Rename grouped map and agg pandas udf tests
icexelloss
committed