Feature summary:
suggestedLink suggestions should ignore content within quotation marks, and italics.

Use case(s):
I believe we generally don't want to propose links within book-titles and similar, nor within direct quotations.

• E.g. Undesired link example in a PDF-title: https://www.mediawiki.org/wiki/Talk:VisualEditor/Suggestion_Mode/Feedback#suggestedLink_on_Spamming_at_enwiki
  • The system suggested linking to "Internet Security" within the last sentence (in a PDF-title) of https://en.wikipedia.org/wiki/Spamming#Email
• E.g. Enwiki MoS: https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Linking#Linking_quotations
  • "Be conservative when linking within quotations; link only to targets that correspond to the meaning clearly intended by the quote's author. Where possible, link from text outside of the quotation instead – either before it or soon after."

Benefits:
Reduce the quantity of edge-cases where an edit might be inappropriate.