Before, we would break the loop if we hit a highlight group with an
empty name. In that case, we should actually continue the loop.
I moved the loop index increment to the beginning of the loop to make
this easier.
The default approximator has been modified to cache both the sorted list
of all possible components and the closest cterm color to a given rgb
color - drops execution time by about one quarter.
Vim allows highlight groups with no name to be created; but doesn't
support getting any information for them. Two commas in a row in a
"syn match" creates a new highlight group that's named "". This bug is
triggered by the distributed doxygen.vim.
syn match doxygenStartSkip2 +^\s*\*$+ contained
\ nextgroup=doxygenBody,doxygenStartSpecial,,doxygenStartSkip skipwhite skipnl
^^
