Update AST Json expectations.

test/libsolidity/ASTJSON/documentation_parseOnly.json

@@ -19,6 +19,7 @@
       },
       "id": 2,
       "name": "C",
+      "nameLocation": "37:1:1",
       "nodeType": "ContractDefinition",
       "nodes": [],
       "src": "28:13:1"
@@ -46,6 +47,7 @@
       },
       "id": 5,
       "name": "C",
+      "nameLocation": "71:1:2",
       "nodeType": "ContractDefinition",
       "nodes": [],
       "src": "62:13:2"
@@ -66,6 +68,7 @@
       "contractKind": "contract",
       "id": 23,
       "name": "C",
+      "nameLocation": "9:1:3",
       "nodeType": "ContractDefinition",
       "nodes":
       [
@@ -74,6 +77,7 @@
           "id": 9,
           "mutability": "mutable",
           "name": "state",
+          "nameLocation": "60:5:3",
           "nodeType": "VariableDeclaration",
           "src": "48:17:3",
           "stateVariable": false,
@@ -100,6 +104,7 @@
           },
           "id": 12,
           "name": "Evt",
+          "nameLocation": "102:3:3",
           "nodeType": "EventDefinition",
           "parameters":
           {
@@ -134,6 +139,7 @@
           },
           "id": 17,
           "name": "mod",
+          "nameLocation": "147:3:3",
           "nodeType": "ModifierDefinition",
           "parameters":
           {
@@ -166,6 +172,7 @@
           "kind": "function",
           "modifiers": [],
           "name": "fn",
+          "nameLocation": "197:2:3",
           "nodeType": "FunctionDefinition",
           "parameters":
           {