[flang] Issue flang-compiler/f18#992 : Implementing Semantic checks for DATA...

[flang] Issue flang-compiler/f18#992 :  Implementing Semantic checks for DATA Statement (C874-C887) (flang-compiler/f18#992)

This commit covers Semantic Constraints C882 - C887

C882 : It was partially Implemented. Finished the implementation
and added test case
C884 : Implemented and added test case
C883 : Implementation was there already. Added test case
C885, C886, C887 : Implementation was there already. Added test case for
data-repeat.

Original-commit: flang-compiler/f18@822129736b6b7a96b6ff3ffe810d842ce42e3672
Reviewed-on: https://github.com/flang-compiler/f18/pull/992