Bug 122869 Drag a parameter from data explorer view into a table in library, a new parameter is created automatically.
Description:Drag a parameter from data explorer view into a table in library, a new parameter is created automatically. Steps to reproduce: 1. Add a cascading parameter and a table in a library file. 2. Drag a parameter from data explorer view into a table cell in layout editor. 3. Find that a new parameter was added in data explorer view automatically.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/ExpressionTreeSupport.java
firstTime = false;
				displayText.append( IArgumentInfo.OPTIONAL_ARGUMENT_NAME.equals( argument.getName( ) ) ? argument.getDisplayName( )
						: ( argument.getType( ) + " " + argument.getDisplayName( ) ) ); 
			}
			displayText.append( ")" );
			expression.append( ")" );
			array[0] = displayText.toString( );
			array[1] = expression.toString( );
			list.add( array );
		}
		return list;
	}
	private String getMemberTextData( String className, ILocalizableInfo info )
	{
		StringBuffer textData = new StringBuffer( );
		if ( !isGlobal( className ) && isStatic( info ) )
		{
			textData.append( className + "." );
		}
		textData.append( info.getName( ) );
		return textData.toString( );
	}
	private boolean isStatic( ILocalizableInfo info )
	{
		return info instanceof IMethodInfo
				&& ( (IMethodInfo) info ).isStatic( )
				|| info instanceof IMemberInfo
				&& ( (IMemberInfo) info ).isStatic( );
	}
}