Bug 153853 [Regression]The bound column names must be unique within the entire table.
Regression case Regression_136421(under org.eclipse.birt.report.tests.model) failed. Expected result: Model will avoid adding a duplicate bound column name within a table.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleHandle.java
* 
	 * @return the location information of the module
	 */
	String getLocation( )
	{
		return getModule( ).getLocation( );
	}
	/**
	 * Checks whether there is an included library in this module, which has the
	 * same absolute path as that of the given library.
	 * 
	 * @param library
	 *            the library to check
	 * @return true if there is an included library in this module, which has
	 *         the same absolute path as that the given library, otherwise false
	 */
	public boolean isInclude( LibraryHandle library )
	{
		return getModule( ).getLibraryByLocation( library.getLocation( ) ) != null;
	}
	/**
	 * Finds a template parameter definition by its name in this module and the
	 * included modules.
	 * 
	 * @param name
	 *            name of the template parameter definition
	 * @return a handle to the template parameter definition, or
	 *         <code>null</code> if the template parameter definition is not
	 *         found
	 */