Bug 108405

Add tests for the following spellcheck behavior: - Spellcheck selects the misspelled word on context click. - Spelling should work when the user selects the misspelled word exactly. - If the word is not misspelled, there should be no spelling options in the context menu. - Spellcheck should select multi-word misspellings on context click. - Spelling should work when the user selects a multi-word misspelling exactly. - Spelling should work for double-clicked misspellings. - Spelling should ignore whitespace. - Underscores should be treated as whitespace: spelling should ignore them. - Punctuation marks should be treated as whitespace: spelling should ignore them. - Spelling should be disabled when user selects a part of misspelling. - Spelling should be disabled when user selects multiple words that are not a single misspelling.