Editor autocomplete won't insert unnecessary quotes

When autocompleting a string (e.g. emit_signal or connect), e.g.

    emit_signal('visibility_c')
                            ^

where "^" is the cursor, hitting <tab> would insert an unnecessary
quote, breaking the string:

    emit_signal('visibility_changed'')

This commit adds a small lookahead, so the end result will be as the
user probably expected:

    emit_signal('visibility_changed')

0 files changed, 0 insertions, 0 deletions