Use `Inst_eddies_5_anti`

Instead of `Inst_eddies_5`, which no longer exists because we now
create separate SHPC for each orientation.

Overlap/Tests/long_tests.json

@@ -6,7 +6,7 @@
         "command":
 	[
             "env", "mpiexec=$mpiexec", "$build_dir/Overlap/eddy_graph.sh", "1",
-            "$PWD/Inst_eddies_5"
+            "$PWD/Inst_eddies_5_anti"
         ]
     }
 ]

Overlap/Tests/short_tests.json

@@ -190,7 +190,7 @@
                 "-n",
                 "1",
                 "$build_dir/Overlap/test_overlap",
-                "$PWD/Inst_eddies_5"
+                "$PWD/Inst_eddies_5_anti"
             ]
         ]
     },
@@ -327,7 +327,7 @@
                 "-n",
                 "1",
                 "$build_dir/Overlap/test_overlap",
-                "$PWD/Inst_eddies_5"
+                "$PWD/Inst_eddies_5_anti"
             ]
         ]
     },