"GCString not installed" can be displayed in cells

[khwilliamson]

This is disconcerting when trying to figure out what went wrong, and this gets in the way

[exodist]

Can you give me an example to reproduce the problem?

[khwilliamson]

    # Failed test 'Got expected table'
    # at (eval in Test2::Tools::Defer) t/modules/Compare/Delta.t line 297. 
    # Unicode::GCString is not installed, table may not display all unicode characters properly
    # +------+-------------------------+---------+-------------------------+
    # | PATH | GOT                     | OP      | CHECK                   |    
    # +------+-------------------------+---------+-------------------------+
    # | [0]  | Unicode::GCString is no | eq      | +-------+------------+- |
    # |      | t installed, table may  |         | -----+-----+--------+-- |
    # |      | not display all unicode |         | ------------+           |    
    # |      |  characters properly    |         |                         |    
    # |      |                         |         |                         |    
    # | [1]  | +-------+------------+- | eq      | | PATH  | LNs        |  | 
    # |      | -----+-----+--------+-- |         | GOT  | OP  | CHECK  | L |
    # |      | ------------+           |         | Ns          |           |    
    # |      |                         |         |                         |    
    # | [2]  | | PATH  | LNs        |  | eq      | +-------+------------+- |
    # |      | GOT  | OP  | CHECK  | L |         | -----+-----+--------+-- |
    # |      | Ns          |           |         | ------------+           |    
    # |      |                         |         |                         |    
    # | [3]  | +-------+------------+- | eq      | | {foo} | GOT LINES! |  | 
    # |      | -----+-----+--------+-- |         | GOT! | OP! | CHECK! | C |
    # |      | ------------+           |         | HECK LINES! |           |    
    # |      |                         |         |                         |    
    # | [4]  | | {foo} | GOT LINES! |  | eq      | | {bar} | GOT LINES! |  | 
    # |      | GOT! | OP! | CHECK! | C |         | GOT! | OP! | CHECK! | C |
    # |      | HECK LINES! |           |         | HECK LINES! |           |    
    # |      |                         |         |                         |    
    # | [5]  | | {bar} | GOT LINES! |  | eq      | | {baz} | GOT LINES! |  | 
    # |      | GOT! | OP! | CHECK! | C |         | GOT! | OP! | CHECK! | C |
    # |      | HECK LINES! |           |         | HECK LINES! |           |
    # |      |                         |         |                         |
    # | [6]  | | {baz} | GOT LINES! |  | eq      | | {bat} | GOT LINES! |  |
    # |      | GOT! | OP! | CHECK! | C |         | GOT! | OP! | CHECK! | C |
    # |      | HECK LINES! |           |         | HECK LINES! |           |
    # |      |                         |         |                         |
    # | [7]  | | {bat} | GOT LINES! |  | eq      | +-------+------------+- |
    # |      | GOT! | OP! | CHECK! | C |         | -----+-----+--------+-- |
    # |      | HECK LINES! |           |         | ------------+           |
    # |      |                         |         |                         |
    # | [8]  | +-------+------------+- | !exists | <DOES NOT EXIST>        |
    # |      | -----+-----+--------+-- |         |                         |
    # |      | ------------+           |         |                         |
    # +------+-------------------------+---------+-------------------------+
    # Failed test 'Got expected table and warning'