Created attachment 162624 [details]
Screencaps of current (incorrect) highlighting vs correct highlighting

When an Object literal is used within an ES6 template literal, the syntax highlighting indicating the embedded expression (within placeholder delimiters “${…}”) incorrectly stops at the closing brace of the expression's Object literal — not at the closing brace of the expression's placeholder delimiters — with the rest of the expression highlighted as a String.

Example:
    /**
     * @returns {String} source string with '<','>','&','"' replaced with their HTML/XML entities.
     */
1:    function h ( s )
2:    {
3:        return s.replace(/[<>&"]/g, function(c){
4:            return `&${{'<':'lt','>':'gt','&':'amp','"':'quot'}[c]};`;
5:        });
6:    }

template literal in line #4: String syntax incorrectly resumes with the opening bracket at “[c];”, but String syntax should not resume until after the final closing curly bracket of the expression placeholder's delimiters (only the final “;” character should be highlighted as String syntax).