Promote fixed #949 test

Author: voodoos

tests/test-dirs/locate/issue949.t/run.t

@@ -1,8 +1,14 @@
 This test is for testing the behavior of identifiers with a . in them:
 
-  $ $MERLIN single locate -look-for ml -position 2:16 ./issue949.ml < ./issue949.ml
+  $ $MERLIN single locate -look-for ml -position 2:16 ./issue949.ml <./issue949.ml
   {
     "class": "return",
-    "value": "Not in environment ''",
+    "value": {
+      "file": "*buffer*",
+      "pos": {
+        "line": 1,
+        "col": 22
+      }
+    },
     "notifications": []
   }