djabaay authored Dec 13, 2017 and COLLINSBS email committed Dec 13, 2017

* Adding assignment overloading for reals to strings.

Description:
Since we could assign an integer to a string type, adding a similar
overload for reals seemed useful.  Set up and tested in the same manner
as the integers were.

CASL Ticket # - N/A

* Fixing an incorrect change to a previous test.

Description:
The integer portion was accidentally changed.  Changing it back.

CASL Ticket # - N/A

* Added tests for StringType handling assignments to NaN.

* Added unit tests for assigning StringTypes to +/-TINY(SRK).