got rid of 'accept' dir in the tests

tests/run/tsplit.nim

@@ -0,0 +1,20 @@
+discard """
+  file: "tsplit.nim"
+  output: "true"
+"""
+import strutils
+
+var s = ""
+for w in split("|abc|xy|z", {'|'}):
+  s.add("#")
+  s.add(w)
+
+if s == "#abc#xy#z":
+  echo "true"
+else:
+  echo "false"
+  
+#OUT true
+
+
+