Function isParameterNameStart

test/fixtures/snapshot/typescript.js:33470–33475

()

            return name;
        }
        function isParameterNameStart() {
            // Be permissive about await and yield by calling isBindingIdentifier instead of isIdentifier; disallowing
            // them during a speculative parse leads to many more follow-on errors than allowing the function to parse then later
            // complaining about the use of the keywords.
            return isBindingIdentifier() || token() === 22 /* SyntaxKind.OpenBracketToken */ || token() === 18 /* SyntaxKind.OpenBraceToken */;
        }
        function parseParameter(inOuterAwaitContext) {
            return parseParameterWorker(inOuterAwaitContext);
        }