build(npm): update to ts2dart@0.7.17

resolves regression in 0.7.16

Closes #5758

npm-shrinkwrap.clean.json

@@ -13524,7 +13524,7 @@
       }
     },
     "ts2dart": {
-      "version": "0.7.16",
+      "version": "0.7.17",
       "dependencies": {
         "source-map": {
           "version": "0.4.4",
@@ -13546,9 +13546,6 @@
               }
             }
           }
-        },
-        "typescript": {
-          "version": "1.7.3"
         }
       }
     },

npm-shrinkwrap.json

@@ -20729,9 +20729,9 @@
       }
     },
     "ts2dart": {
-      "version": "0.7.16",
-      "from": "ts2dart@0.7.16",
-      "resolved": "https://registry.npmjs.org/ts2dart/-/ts2dart-0.7.16.tgz",
+      "version": "0.7.17",
+      "from": "ts2dart@0.7.17",
+      "resolved": "https://registry.npmjs.org/ts2dart/-/ts2dart-0.7.17.tgz",
       "dependencies": {
         "source-map": {
           "version": "0.4.4",
@@ -20763,11 +20763,6 @@
               }
             }
           }
-        },
-        "typescript": {
-          "version": "1.7.3",
-          "from": "typescript@1.7.3",
-          "resolved": "https://registry.npmjs.org/typescript/-/typescript-1.7.3.tgz"
         }
       }
     },

package.json

@@ -112,7 +112,7 @@
     "systemjs": "0.18.10",
     "systemjs-builder": "^0.10.3",
     "through2": "^0.6.5",
-    "ts2dart": "^0.7.16",
+    "ts2dart": "^0.7.17",
     "tsd": "^0.6.5-beta",
     "tslint": "^3.0.0-dev.1",
     "typescript": "^1.7.3",