Bug 23265 – spell checker could provide better identification of spelling mistakes

This is a small quality-of-life issue. But sometimes symbols are quite long. The spell checker suggests the correct one, but human brain doesn't register the difference. Humans can read words the same most of the time as long as the frist and last lettres match, with the correct letters smoehwere in the middle for example, I had the symbol intialCustomFields, which really should be initialCustomFields. Try to see the difference between those quickly. What I'd like to see is either a colorized diff showing the deleted/added/swapped letters, or some visual indicator like: undefined identifier `intialCustomFields`, did you mean variable `initialCustomFields`? diff: `in>i<tialCustomFields` Or something to that effect. Or maybe a second line pointing at the difference spots with carets.

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