Bug 126233 [FieldAssist] DecoratedField should not automatically reserve space on field ends
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/DecoratedField.java
private int hah = 10;
		/**
		 * Margin around info hover text.
		 */
		private int hm = 2;
		/**
		 * This info hover's shell.
		 */
		Shell hoverShell;
		/**
		 * The info hover text.
		 */
		String text = EMPTY;
		/**
		 * The region used to manage the shell shape
		 */
		Region region;
		/**
		 * Boolean indicating whether the last computed polygon location had an
		 * arrow on left. (true if left, false if right).
		 */
		boolean arrowOnLeft = true;
		/*
		 * Create a hover parented by the specified shell.
		 */
		Hover(Shell parent) {
			final Display display = parent.getDisplay();
			hoverShell = new Shell(parent, SWT.NO_TRIM | SWT.ON_TOP
					| SWT.NO_FOCUS);
			hoverShell.setBackground(display