[soy mode] Support kind="trusted_resource_uri" (codemirror#5279)

Author: vrana

mode/soy/soy.js

@@ -22,6 +22,7 @@
       attributes: textMode,
       text: textMode,
       uri: textMode,
+      trusted_resource_uri: textMode,
       css: CodeMirror.getMode(config, "text/css"),
       js: CodeMirror.getMode(config, {name: "text/javascript", statementIndent: 2 * config.indentUnit})
     };