Use long double for intermediate quadrature result in order to reduce the roundoff error in test for quadrature accuracy.
Use long double for intermediate quadrature result in order to reduce the roundoff error in test for quadrature accuracy.

git-svn-id: 31d9d2f6432a47c86a3640814024c107794ea77c@14731 0785d39b-7218-0410-832d-ea1e28bc413d

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