Fixed docs for webGL method variants (overloaded methods were getting the same comments).

tools/dom/docs/docs.json

 {
   "dart.dom.html": {
     "AbstractWorker": {
       "members": {
         "errorEvent": [
           "/**",
           "   * Static factory designed to expose `error` events to event",
           "   * handlers that are not necessarily instances of [AbstractWorker].",
           "   *",
           "   * See [EventStreamProvider] for usage information.",
@@ skipping 5171 matching lines @@
         " * bits.",
         " */"
       ]
     },
     "WebGLRenderingContext": {
       "members": {
         "bufferData": [
           "/**",
           "   * Buffers the specified data.",
           "   *",
-          "   * This specific method is provided for WebGL API compatibility reasons, but",
+          "   * The [bufferData] method is provided for WebGL API compatibility reasons, but",
           "   * it is highly recommended that you use [bufferDataTyped] or [bufferByteData]",
           "   * depending on your purposes.",
           "   */"
         ],
         "bufferSubData": [
           "/**",
           "   * Buffers the specified subset of data.",
           "   *",
-          "   * This specific method is provided for WebGL API compatibility reasons, but",
+          "   * The [bufferSubData] method is provided for WebGL API compatibility reasons, but",
           "   * it is highly recommended that you use [bufferSubDataTyped] or [bufferSubByteData]",
           "   * depending on your purposes.",
           "   */"
         ],
         "texImage2D": [
           "/**",
           "   * Updates the currently bound texture to [data].",
           "   *",
-          "   * This specific method is provided for WebGL API compatibility reasons, but it",
+          "   * The [texImage2D] method is provided for WebGL API compatibility reasons, but it",
           "   * is highly recommended that you use [texImage2DUntyped] or [texImage2DTyped]",
           "   * (or for more specificity, the more specialized [texImage2DImageData],",
           "   * [texImage2DCanvas], [texImage2DVideo]).",
           "   */"
         ],
         "texSubImage2D": [
           "/**",
           "   * Updates a sub-rectangle of the currently bound texture to [data].",
           "   *",
-          "   * This specific method is provided for WebGL API compatibility reasons, but it",
+          "   * The [texSubImage2D] method is provided for WebGL API compatibility reasons, but it",
           "   * is highly recommended that you use [texSubImage2DUntyped] or [texSubImage2DTyped]",
           "   * (or for more specificity, the more specialized [texSubImage2DImageData],",
           "   * [texSubImage2DCanvas], [texSubImage2DVideo]).",
           "   */"
         ]
       }
     }
   },
   "dart.dom.web_sql": {
     "Database": {
       "members": {
         "changeVersion": [
           "/**",
           "   * Atomically update the database version to [newVersion], asynchronously",
           "   * running [callback] on the [SqlTransaction] representing this",
           "   * [changeVersion] transaction.",
           "   *",
           "   * If [callback] runs successfully, then [successCallback] is called.",
           "   * Otherwise, [errorCallback] is called.",
           "   *",
           "   * [oldVersion] should match the database's current [version] exactly.",
           "   *",
           "   * * [Database.changeVersion](http://www.w3.org/TR/webdatabase/#dom-database-changeversion) from W3C.",
           "   */"
         ]
       }
     }
   }
 }