fix: all the fixings

tests/crossplatform/mf_getvarcount.test.sas

@@ -4,6 +4,7 @@
 
   <h4> SAS Macros </h4>
   @li mf_getvarcount.sas
+  @li mp_assertscope.sas
 
 **/
 
@@ -13,6 +14,10 @@ data work.all work.nums(keep=num1 num2) work.chars(keep=char1 char2);
   output;
 run;
 
+%mp_assertscope(SNAPSHOT)
+%put scope check:%mf_getvarcount(work.all);
+%mp_assertscope(COMPARE)
+
 %mp_assert(
   iftrue=(%mf_getvarcount(work.all)=5),
   desc=%str(Checking for mixed vars),