Bug 256651 [FieldAssist] Wrong location calculation of proposal popup shell if content control is near bottom in the screen
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
proposedBounds = leftProposedBounds;
					}
				} else {
					
					proposedBounds = rightProposedBounds;
				}
				getShell().setBounds(proposedBounds);
			}
			
			/*
			 * (non-Javadoc)
			 * @see org.eclipse.jface.dialogs.PopupDialog#getForeground()
			 */
			protected Color getForeground() {
				return control.getDisplay().
						getSystemColor(SWT.COLOR_INFO_FOREGROUND);
			}
			
			/*
			 * (non-Javadoc)
			 * @see org.eclipse.jface.dialogs.PopupDialog#getBackground()
			 */
			protected Color getBackground() {
				return control.getDisplay().
						getSystemColor(SWT.COLOR_INFO_BACKGROUND);
			}
			/*
			 * Set the text contents of the popup.
			 */