Bug 61782 Quickdiff hover hides the added lines
I200405111200 Linux-GTK The hover displayed for added lines when putting the cursor on the quickdiff bar is as wide as the editor, hiding the text. A few weeks ago, it was only one character wide, this was way better.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/CustomSourceInformationControl.java
StyledText styledText= getViewer().getTextWidget();
			Control parent= styledText;
			if (getViewer() instanceof ITextViewerExtension) {
				ITextViewerExtension extension= (ITextViewerExtension) getViewer();
				parent= extension.getControl();
			}
			
			parent.setRedraw(false);
			
			styledText.setFont(font);
			
			getViewer().setSelectedRange(selection.x , selection.y);
			getViewer().setTopIndex(topIndex);
			
			if (parent instanceof Composite) {
				Composite composite= (Composite) parent;
				composite.layout(true);
			}
			
			parent.setRedraw(true);
			
		} else {
			StyledText styledText= getViewer().getTextWidget();
			styledText.setFont(font);
		}	
	}
	/**
	 * Sets the initial partition for the underlying source viewer.
	 * 
	 * @param partition the partition type