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/parser/EngineIRVisitor.java
if ( isColorProperty )
			{
				return prop.getColorValue( );
			}
			return prop.getStringValue( );
		}
		return null;
	}
	String getElementColorProperty( ReportElementHandle handle, String name )
	{
		FactoryPropertyHandle prop = handle.getFactoryPropertyHandle( name );
		if ( prop != null && prop.isSet( ) )
		{
			return prop.getColorValue( );
		}
		return null;
	}
	protected StyleDeclaration createPrivateStyle( ReportElementHandle handle )
	{
		return createPrivateStyle( handle, true );
	}
	protected String decodePageBreak( String pageBreak )
	{
		if ( pageBreak == null )
		{
			return null;
		}
		if ( DesignChoiceConstants.PAGE_BREAK_AFTER_ALWAYS.equals( pageBreak ) )
		{
			return IStyle.CSS_ALWAYS_VALUE;