Fix regression introduced in ed38b1f where strings inside single line comments could be erroneously coloured.
Fix regression introduced in ed38b1f where strings inside single line comments could be erroneously coloured.

Tested with ASM-x86 syntax definition. This is not a definitive fix, it simply restores the previous behavior, which wasn't completely correct in the first place. The syntax highlighter definitively needs some heavy refactoring.

vakoc/Fragaria,shysaur/Fragaria,bitstadium/Fragaria,bitstadium/Fragaria,shysaur/Fragaria,vakoc/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria,shysaur/Fragaria