Bug 483937 - use new JFaceTextUtil.computeLineHeight() in DiffPainter

For client interested in *full real* text line height (including all
wrapped line segments) replaced call to StyledText.getLineHeight(int)
with new JFaceTextUtil.computeLineHeight() API.

Change-Id: I7df34cb98f00051367fd6b4680d1ead3499f5549
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
1 file changed