Review Request: Add a 10ms timer to scheduling a document for reparsing, and refactor -- fixes slowness when inserting text

[Sven Brauch]

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http://git.reviewboard.kde.org/r/107140/
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Review request for KDevelop and Milian Wolff.


Description
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    Add a 10ms timer to scheduling a document for reparsing, and refactor.
    
    This fixes extreme slowness when pasting large parts of text
    into the editor.
    Also, make DocumentParsePlan targets a set instead of a list.

I wanted to write a unit test benchmark which verifies this but it turns out to be difficult, since you need a KateTextDocument for inserting text, and it's not being installed (the .h file). I thus didn't do that yet.

You can easily test this manually by pasting > 3000 lines into the editor.


Diffs
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  language/backgroundparser/backgroundparser.cpp 28a4202 
  language/backgroundparser/documentchangetracker.h e3f7f5c 
  language/backgroundparser/documentchangetracker.cpp 2aab705 

Diff: http://git.reviewboard.kde.org/r/107140/diff/


Testing
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Thanks,

Sven Brauch

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