Modernization, better linting, adjustment after stricter static rules

src/diagrams/flowchart/parser/flow.js

@@ -332,14 +332,14 @@ parse: function parse(input) {
         lstack.length = lstack.length - n;
     }
     _token_stack:
-        function lex() {
+        var lex = function () {
             var token;
             token = lexer.lex() || EOF;
             if (typeof token !== 'number') {
                 token = self.symbols_[token] || token;
             }
             return token;
-        }
+        };
     var symbol, preErrorSymbol, state, action, a, r, yyval = {}, p, len, newState, expected;
     while (true) {
         state = stack[stack.length - 1];