Bug 147676 [regression]Visibility set in the first col will affect the second col
Description: Visibility set in the first col will affect the second col Steps to reproduce: 1. Insert a grid(3*3), insert contents to each cell. 2.Set the first col to hide all in visibility and preview Expected result: Only the first col is hidden. Actual result: The second col is hidden, too. If you set the second col in step2, the third col will disappear.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFTableLM.java
implements
			IPDFTableLayoutManager,
			IBlockStackingLayoutManager
{
	/**
	 * hold all unresolved drop cell area
	 */
	protected ArrayList dropList = new ArrayList( );
	/**
	 * Border conflict resolver
	 */
	protected BorderConflictResolver bcr = new BorderConflictResolver( );
	/**
	 * table content
	 */
	private ITableContent tableContent;
	/**
	 * identify if repeat header