SynEdit: Current word markup: fix issues from recent optimizations.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39957 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: SourceEditor: reduce work when applying global options

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@39958 4005530d-fff6-0310-9dd1-cebe43e6787f