Fix travis

tests/expected_json/deprecated_calls.deprecated-standards.json

@@ -720,7 +720,46 @@
               "parent": {
                 "type": "function",
                 "name": "slitherConstructorVariables",
-                "source_mapping": null,
+                "source_mapping": {
+                  "start": 0,
+                  "length": 906,
+                  "filename_used": "/home/travis/build/crytic/slither/tests/deprecated_calls.sol",
+                  "filename_relative": "tests/deprecated_calls.sol",
+                  "filename_absolute": "/home/travis/build/crytic/slither/tests/deprecated_calls.sol",
+                  "filename_short": "tests/deprecated_calls.sol",
+                  "is_dependency": false,
+                  "lines": [
+                    1,
+                    2,
+                    3,
+                    4,
+                    5,
+                    6,
+                    7,
+                    8,
+                    9,
+                    10,
+                    11,
+                    12,
+                    13,
+                    14,
+                    15,
+                    16,
+                    17,
+                    18,
+                    19,
+                    20,
+                    21,
+                    22,
+                    23,
+                    24,
+                    25,
+                    26,
+                    27
+                  ],
+                  "starting_column": 1,
+                  "ending_column": null
+                },
                 "type_specific_fields": {
                   "parent": {
                     "type": "contract",