Function isLetDeclaration

test/fixtures/snapshot/typescript.js:36260–36264

()

            return isBindingIdentifier() || token() === 18 /* SyntaxKind.OpenBraceToken */ || token() === 22 /* SyntaxKind.OpenBracketToken */;
        }
        function isLetDeclaration() {
            // In ES6 'let' always starts a lexical declaration if followed by an identifier or {
            // or [.
            return lookAhead(nextTokenIsBindingIdentifierOrStartOfDestructuring);
        }
        function parseStatement() {
            switch (token()) {
                case 26 /* SyntaxKind.SemicolonToken */: