Removed aliases of Eigen::VectorX, also in tests (as it will not work with older Eigen versions).

10 jobs for master in 4 minutes and 41 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Static Test
passed clang-format #840274
linux elsa clang

00:00:16

passed clang-tidy #840275
linux elsa clang

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  Compile
passed build-clang8 #840278
linux elsa clang

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passed build-cuda92 #840279
linux elsa gcc cuda

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passed build-gcc9 #840277
linux elsa gcc

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passed build-ubuntu #840276
linux elsa

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  Test
passed test-clang8 #840282
linux elsa clang

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passed test-cuda92 #840283
linux elsa gcc cuda

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passed test-gcc9 #840281
linux elsa gcc

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passed test-ubuntu #840280
linux elsa

00:03:35