Expression.containsTemporalTimeBounds(): do not recurse into P/R/SS subformulas

Expressions such as 
 P=?[ X F P>0[F<=4 s=7] ]
were problematic before, as the LTL check for time bounds would recurse into the P-subformula
and complain without need.



git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@11036 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/parser/ast/Expression.java

@@ -731,7 +731,8 @@ public abstract class Expression extends ASTElement
 	public static boolean containsTemporalTimeBounds(Expression expr)
 	{
 		try {
-			expr.accept(new ASTTraverse()
+			// check for time bounds, don't recurse into P/R/SS subformulas
+			expr.accept(new ExpressionTraverseNonNested()
 			{
 				public void visitPre(ExpressionTemporal e) throws PrismLangException
 				{