Note: This is in the DPath implementation of Daffodil

All of the double constructor tests are failing (except the negative test) for strange rounding and precision issues.

e.g.

[info] Test edu.illinois.ncsa.daffodil.section23.dfdl_expressions.TestDFDLExpressions.test_double_constructor_01 started
[error] Test edu.illinois.ncsa.daffodil.section23.dfdl_expressions.TestDFDLExpressions.test_double_constructor_01 failed: java.lang.Exception:
[error] Comparison failed.
[error] Expected
[error] <double01><string>4.3</string><doublified>4.3</doublified></double01>
[error] Actual
[error] <double01><string>4.3</string><doublified>4.300000190734863</doublified></double01>
[error] Differences were (path, expected, actual):
[error] (double01/doublified,'4.3','4.300000190734863')

See tests:
test_double_constructor_01
test_double_constructor_02
test_double_constructor_03
test_double_constructor_04
test_double_constructor_05
test_double_constructor_07

In daffodil-test/src/test/resources/edu/illinois/ncsa/daffodil/section23/dfdl_functions/Functions.tdml