Devtools: [WIP] Implement enhanced devtools extension language APIs

Source/devtools/front_end/workspace/UISourceCode.js

Index: Source/devtools/front_end/workspace/UISourceCode.js
diff --git a/Source/devtools/front_end/workspace/UISourceCode.js b/Source/devtools/front_end/workspace/UISourceCode.js
index 1b374623fc42f589f914df608d9aaf80055a6e1d..3d3e8c3c155378cc409f77af13ef8d15e58d5d9d 100644
--- a/Source/devtools/front_end/workspace/UISourceCode.js
+++ b/Source/devtools/front_end/workspace/UISourceCode.js
@@ -520,12 +520,7 @@ WebInspector.UISourceCode.prototype = {
      */
     extension: function()
     {
-        var lastIndexOfDot = this._name.lastIndexOf(".");
-        var extension = lastIndexOfDot !== -1 ? this._name.substr(lastIndexOfDot + 1) : "";
-        var indexOfQuestionMark = extension.indexOf("?");
-        if (indexOfQuestionMark !== -1)
-            extension = extension.substr(0, indexOfQuestionMark);
-        return extension;
+        return WebInspector.TextUtils.extension(this._name);
     },
 
     /**
@@ -726,3 +721,65 @@ WebInspector.Revision.prototype = {
         callback([]);
     }
 }
+
+/**
+ * @constructor
+ * @param {string} text
+ * @param {string} kind
+ * @param {{startLine: number, startColumn: number, endLine: number, endColumn: number}} location
+ */
+WebInspector.UISourceCodeMessage = function(text, kind, location) {
+    this._text = text;
+    this._kind = kind;
+    this._location = location;
+}
+
+WebInspector.UISourceCodeMessage.prototype = {
+    /**
+     * @return {string}
+     */
+    text: function() {
+        return this._text;
+    },
+
+    /**
+     * @return {string}
+     */
+    kind: function() {
+        return this._kind;
+    },
+
+    /**
+     * @return {{startLine: number, startColumn: number, endLine: number, endColumn: number}}
+     */
+    location: function() {
+        return this._location;
+    }
+}
+
+/**
+ * @constructor
+ * @param {!WebInspector.UISourceCode} source
+ * @param {!Array<!WebInspector.UISourceCodeMessage>} messages
+ */
+WebInspector.UISourceCodeMessages = function(source, messages)
+{
+    this._source = source;
+    this._messages = messages;
+}
+
+WebInspector.UISourceCodeMessages.prototype = {
+    /**
+     * @return {!WebInspector.UISourceCode}
+     */
+    source: function() {
+        return this._source;
+    },
+    
+    /**
+     * @return {!Array<!WebInspector.UISourceCodeMessage>}
+     */
+    messages: function() {
+        return this._messages;
+    }
+}