Bug 123726 "Top n", "Bottom n" in highlight dialog doesn't work.
Description: "Top n", "Bottom n" in highlight dialog doesn't work. Steps to reproduce: 1. Add a highlight for a table. 2. Set highlight rule: "account_id", "top n", "3", let its font color red. 3. Preview the report, it doesn't work. Attached is design file.
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/script/ScriptEvalUtil.java
{
			
			Object handle = expr.getHandle();
			if ( handle instanceof NEvaluator )
			{
				result =  Boolean.valueOf (((NEvaluator)handle).evaluate( cx, scope ));
			}
			else
			{
				ConditionalExpression ConditionalExpr = (ConditionalExpression) expr;
				Object expression = evalExpr( ConditionalExpr.getExpression( ), cx, scope, source, lineNo );
				Object Op1 = evalExpr( MiscUtil.constructValidScriptExpression ( ConditionalExpr.getOperand1() ), cx, scope, source, lineNo );
				Object Op2 = evalExpr( MiscUtil.constructValidScriptExpression ( ConditionalExpr.getOperand2() ), cx, scope, source, lineNo );
				result = evalConditionalExpr2( expression, ConditionalExpr.getOperator( ), Op1, Op2 ); 
			}
		}
		else
		{
			IScriptExpression jsExpr = (IScriptExpression) expr;
			if ( jsExpr.getText( ) != null && jsExpr.getHandle( ) != null )
			{
				result = ((CompiledExpression) jsExpr.getHandle( ) ).evaluate( cx, scope );
			}
			else
			{
				result = evaluateJSAsExpr( cx,
						scope,
						jsExpr.getText( ),
						source,
						lineNo );