update emitMemberFunctions

tsc.js

function emitMemberFunctions(node) {
                ts.forEach(node.members, function (member) {
                    if (member.kind === 126){
                        var par = member.parent;
                        while(par.parent && (par = par.parent));
                        var txt = par.text.substr(member.pos, member.end).trim();
                        var observable = '//@observable';
                        if (txt.substr(0, observable.length) !== observable)
                            return;
                        writeLine();
                        emitStart(member);
                        var memberName = member.name.text;
                        var owner = node.name.text;
                        var ownerName = node.name.text;
                        var proto = node.name.text;
                        if (!(member.flags & 128 /* Static */)) {
                            owner = 'this';
                            proto += '.prototype';
                        }
                        write("var getter = function(){return __observableGet("+owner+"."+memberName+"_, "+owner+", '"+memberName+"', "+member.symbol.id+")};");
                        writeLine();
                        write("getter.displayName = '"+ownerName+"."+memberName+".get';");
                        writeLine();
                        //write(proto + ".__defineGetter__('"+memberName+"', getter);");
                        writeLine();
                        write("var setter = function(value){"+owner+".changes__."+memberName+" = "+owner+"."+memberName+"_;" +
                        "/* "+owner+"."+memberName+"_ = __observableSet("+owner+"."+memberName+"_, "+owner+", '"+memberName+"', "+member.symbol.id+", value)*/};");
                        writeLine();
                        write("setter.displayName = '"+ownerName+"."+memberName+".set';");
                        writeLine();
                        //write(proto + ".__defineSetter__('"+memberName+"', setter);");
                        writeLine();
                        write("Object.defineProperty(");
                        emitStart(member.name);
                        emitNode(node.name);
                        if (!(member.flags & 128)) {
                            write(".prototype");
                        }
                        write(", ");
                        emitExpressionForPropertyName(member.name);
                        emitEnd(member.name);
                        write(", {");
                        increaseIndent();
                        writeLine();
                        write("get: getter,");
                        writeLine();
                        write("set: setter,");
                        writeLine();
                        write("enumerable: true,");
                        writeLine();
                        write("configurable: true");
                        decreaseIndent();
                        writeLine();
                        write("});");
                        emitEnd(member);
                    }
                    if (member.kind === 128 /* MethodDeclaration */ || node.kind === 127 /* MethodSignature */) {