Bug 1311266 - Add devtools/shared to paths in JSONView. r=Honza;

Since we are now using "devtools/shared/dom-node-constants" in Reps, the JSONView
was failing. Add "devtools/shared" to the requirejs configuration to allow the JSONView
to require the script, and wrap the dom-node-constants export in `define` since the view
expect the modules to be AMD.

MozReview-Commit-ID: CXQZ0YzrWGV

devtools/shared/dom-node-constants.js

@@ -1,24 +1,30 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
-module.exports = {
-  ELEMENT_NODE: 1,
-  ATTRIBUTE_NODE: 2,
-  TEXT_NODE: 3,
-  CDATA_SECTION_NODE: 4,
-  ENTITY_REFERENCE_NODE: 5,
-  ENTITY_NODE: 6,
-  PROCESSING_INSTRUCTION_NODE: 7,
-  COMMENT_NODE: 8,
-  DOCUMENT_NODE: 9,
-  DOCUMENT_TYPE_NODE: 10,
-  DOCUMENT_FRAGMENT_NODE: 11,
-  NOTATION_NODE: 12,
+// Make this available to both AMD and CJS environments
+define(function (require, exports, module) {
+  module.exports = {
+    ELEMENT_NODE: 1,
+    ATTRIBUTE_NODE: 2,
+    TEXT_NODE: 3,
+    CDATA_SECTION_NODE: 4,
+    ENTITY_REFERENCE_NODE: 5,
+    ENTITY_NODE: 6,
+    PROCESSING_INSTRUCTION_NODE: 7,
+    COMMENT_NODE: 8,
+    DOCUMENT_NODE: 9,
+    DOCUMENT_TYPE_NODE: 10,
+    DOCUMENT_FRAGMENT_NODE: 11,
+    NOTATION_NODE: 12,
 
-  // DocumentPosition
-  DOCUMENT_POSITION_DISCONNECTED: 0x01,
-  DOCUMENT_POSITION_PRECEDING: 0x02,
-  DOCUMENT_POSITION_FOLLOWING: 0x04,
-  DOCUMENT_POSITION_CONTAINS: 0x08,
-  DOCUMENT_POSITION_CONTAINED_BY: 0x10,
-  DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 0x20
-}
+    // DocumentPosition
+    DOCUMENT_POSITION_DISCONNECTED: 0x01,
+    DOCUMENT_POSITION_PRECEDING: 0x02,
+    DOCUMENT_POSITION_FOLLOWING: 0x04,
+    DOCUMENT_POSITION_CONTAINS: 0x08,
+    DOCUMENT_POSITION_CONTAINED_BY: 0x10,
+    DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: 0x20
+  };
+});