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
MemberHandle hValue2 = ruleHandle
				.getMember( HighlightRule.VALUE2_MEMBER );
		MemberHandle hTestExpr = ruleHandle
				.getMember( HighlightRule.TEST_EXPR_MEMBER );
		String oper = hOperator.getStringValue( );
		String value1 = hValue1.getStringValue( );
		String value2 = hValue2.getStringValue( );
		String testExpr = hTestExpr.getStringValue( );
		rule.setExpression( oper, value1, value2 );
		if ( testExpr != null && testExpr.length( ) > 0 )
		{
			rule.setTestExpression( testExpr );
		}
		else if ( ( defaultStr != null ) && defaultStr.length( ) > 0 )
		{
			rule.setTestExpression( defaultStr );
		}
		else
		{
			
			return null;
		}
		
		
		StyleDeclaration style = new StyleDeclaration( cssEngine );
		setupStyle( ruleHandle, style );
		
		if ( style.isEmpty( ) )
		{
			return null;