Bug 10236 Enable decorators in Type hierarchy view
See the packages view for how to do this.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/MethodsViewer.java
IMethod similar= findSimilarMethod(method, currElements);
							if (similar != null) {
								newSelectionElements.add(similar);
							}
						}
					}
				}
				newSelection= new StructuredSelection(newSelectionElements);
			} catch (JavaModelException e) {
				JavaPlugin.log(e);
			}
		}
		setSelection(newSelection);
		updateSelection(newSelection);
	}
	
	private IMethod findSimilarMethod(IMethod meth, Object[] elements) throws JavaModelException {
		String name= meth.getElementName();
		String[] paramTypes= meth.getParameterTypes();
		boolean isConstructor= meth.isConstructor();
		
		for (int i= 0; i < elements.length; i++) {
			Object curr= elements[i];
			if (curr instanceof IMethod && JavaModelUtil.isSameMethodSignature(name, paramTypes, isConstructor, (IMethod) curr)) {
				return (IMethod) curr;
			}
		}
		return null;
	}
}