Table indexes chrome tests

Mozilla Bug 410052

this is a caption for this table
col1 | col2 | col3
--- | --- | ---
1 | 2 | 3
4 | 5
6 | 7

this is a caption for this bc table
col1 | col2 | col3
--- | --- | ---
1 | 2 | 3
4 | 5
6 | 7

test empty row groups
col1 | col2 | col3
--- | --- | ---
1 | 2 | 3
4 | 5
6 | 7

empty rowgroup + empty rows
col1 | col2 | col3
--- | --- | ---
1 | 2 | 3
4 | 5
6 | 7
8 | 9 | 10

test cellmap holes
col1 | col2 | col3
--- | --- | ---
1 | 2 | 3
4 | 5
6
7