[news.eclipse.tools] JavaEditor slowdown: RuleBasedPartitioner scans ent

[David Sanders <dsanders@xxxxxxxxxxx>]

For each keypress, the RuleBasedPartitioner's documentChanged(...)
method rescans the entire document in the default case, regardless of
which part of the document has changed.  This leads to a slowdown in the
Java Editor, etc.

(Eclipse R0.9 B0.125)

David