Remove unused esprima_wrapper.js.

var EsprimaWrapper = (function() {

    var typeMap = {

        "Numeric": 0,

        "String": 1,

        "Identifier": 2,

        "Boolean": 2,

        "Null": 2,

        "RegularExpression": 3,

        "Punctuator": 4,

        "Keyword": 5,

        "Block": 6

    };

    function exportTokens(tokens, full_input) {

        var valueMap = {};

        var valueCounter = 0;

        var type = [], value = [], linenr = [];

        var lastComIndex = 0;

        var lastComLineNr = 1;

        for (var i=0, len=tokens.length; i<len; i++) {

            var t = tokens[i];

            type[i] = typeMap[t.type];

            var v = t.value;

            if (t.type === "Block") {

                value[i] = "/*" + v + "*/";

                linenr[i] = (full_input.slice(lastComIndex, t.range[0]).match(/\n/g) || []).length + lastComLineNr;

                lastComIndex = t.range[0];

                lastComLineNr = linenr[i];

            }

            else {

                if (t.type === "String") {

                    v = v.replace(/^['"]|['"]$/g, "");

                }

                if (!Object.prototype.hasOwnProperty.call(valueMap, v)) {

                    valueMap[v] = valueCounter;

                    valueCounter++;

                }

                value[i] = valueMap[v];

                linenr[i] = 0;

            }

        }

        var valueArray = [];

        for (var v in valueMap) {

            if (Object.prototype.hasOwnProperty.call(valueMap, v)) {

                valueArray[valueMap[v]] = v;

            }

        }

        return JSON.stringify({type: type, value: value, linenr: linenr, valueArray: valueArray});

    };

    function filterDocComments(comments) {

        var docs = [];

        for (var i=0, len=comments.length; i<len; i++) {

            var c = comments[i];

            if (c.type === "Block" && /^\*/.test(c.value)) {

                docs.push(c);

            }

        }

        return docs;

    }

    // Combines tokens and comments arrays into one array

    // while keeping them in correct order.

    function mergeTokens(tokens, comments) {

        var result = [];

        var c = 0, com = comments[c];

        var t = 0, tok = tokens[t];

        while (com || tok) {

            if (!com || tok && (tok.range[0] < com.range[0])) {

                result.push(tok);

                tok = tokens[++t];

            }

            else {

                result.push(com);

                com = comments[++c];

            }

        }

        return result;

    }

    function parse(js) {

        var program = esprima.parse(js, {tokens: true, comment: true});

        var tokens = program.tokens;

        var comments = filterDocComments(program.comments);

        // return exportTokens(tokens.concat(comments));

        return exportTokens(mergeTokens(tokens, comments), js);

    }

    return {parse: parse};

})();