updated string tests to allow for optimised storage in the data segment

valid/IO/print/multipleStringsAssignment.wacc

@@ -2,18 +2,18 @@
 
 # Output:
 # s1 is Hi
-# s2 is Hi
+# s2 is Hello
 # They are not the same string.
 # Now make s1 = s2
-# s1 is Hi
-# s2 is Hi
+# s1 is Hello
+# s2 is Hello
 # They are the same string.
 
 # Program:
 
 begin
   string s1 = "Hi" ;
-  string s2 = "Hi" ;
+  string s2 = "Hello" ;
   print "s1 is " ;
   println s1 ;
   print "s2 is " ;

valid/expressions/stringEqualsExpr.wacc

@@ -10,7 +10,7 @@
 begin
   string s1 = "Hello" ;
   string s2 = "foo" ;
-  string s3 = "foo" ;
+  string s3 = "bar" ;
   bool b = s1 == s1 ;
   println b ;
   println s1 == s2 ;