Use `R4_15_splitted`

Instead of `Inst_eddies_10_splitted`.

Overlap/Tests/short_tests.json

@@ -541,7 +541,7 @@
     {
         "input": "&config_graph_nml cyclone = f/\n&main_nml k = 20461/\n",
         "title": "Read_snapshot_several",
-	"description": "Like Read_snapshot_middle, but we read from several slices. The 3 slices are just the result from splitting Inst_eddies_10.",
+	"description": "Like Read_snapshot_middle, but we read from several slices. The 3 slices are just the result from splitting Region_4_15_days.",
         "commands": [
             [
                 "mkdir", "-p", "SHPC/Slice_0/Anticyclones",
@@ -549,7 +549,7 @@
             ],
             [
                 "$build_dir/Overlap/Tests/test_read_snapshot",
-                "$PWD/Inst_eddies_10_splitted"
+                "$tests_old_dir/R4_15_splitted/SHPC"
             ]
         ]
     },
@@ -568,12 +568,12 @@
     {
 	"title": "EG_15_3_SHPC",
 	"description":
-	"As EG_15_region_4 but with 3 slices which are just the result of splitting Inst_eddies_10.",
+	"As EG_15_region_4 but with 3 slices which are just the result of splitting Region_4_15_days.",
 	"env": {"mpiexec": "$mpiexec"},
 	"command":
 	[
             "$build_dir/Overlap/eddy_graph.sh", "1",
-	    "$PWD/Inst_eddies_10_splitted"
+	    "$tests_old_dir/R4_15_splitted/SHPC"
 	],
 	"input": "&CONFIG_GRAPH_NML MAX_DELTA=4, cyclone = f/\n&MAIN_NML /\n"
     },