Bug 154832 Wrong node is added to Report Parameters for cascading parameter in Palette view
Description: Wrong node is added to Report Parameters for cascading parameter in Palette view. Steps to reproduce: 1. New a report, add a cascading parameter 2. Switch to Script tab in Editor view, and then switch to Palette view 3. Expand Report Parameters node Expected result: A cascading parameter group is added to Report Parameters node Actual result: Expect a cascading parameter group is added to Report Parameters node, the children of the cascading parameter group are added as scalar parameters
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/ExpressionTreeSupport.java
array[0],
							image,
							array[1],
							methodInfo.getToolTip( ),
							true );
				}
			}
		}
	}
	private boolean isGlobal( String name )
	{
		
		return name != null && name.startsWith( "Global" ); 
	}
	private List getMethodArgumentsList( String className, IMethodInfo info )
	{
		List list = new ArrayList( );
		boolean isClassNameAdded = !isGlobal( className ) && isStatic( info );
		String methodStart = info.isConstructor( ) ? "new " : ""; 
		for ( Iterator it = info.argumentListIterator( ); it.hasNext( ); )
		{
			
			
			String[] array = new String[2];
			StringBuffer displayText = new StringBuffer( methodStart );
			displayText.append( info.getDisplayName( ) );
			displayText.append( "(" );
			StringBuffer expression = new StringBuffer( methodStart );
			if ( isClassNameAdded )
			{