Function parseSimpleArrowFunctionExpression

test/fixtures/snapshot/typescript.js:34492–34507

(pos, identifier, asyncModifier)

            }
        }
        function parseSimpleArrowFunctionExpression(pos, identifier, asyncModifier) {
            ts.Debug.assert(token() === 38 /* SyntaxKind.EqualsGreaterThanToken */, "parseSimpleArrowFunctionExpression should only have been called if we had a =>");
            var parameter = factory.createParameterDeclaration(
            /*decorators*/ undefined, 
            /*modifiers*/ undefined, 
            /*dotDotDotToken*/ undefined, identifier, 
            /*questionToken*/ undefined, 
            /*type*/ undefined, 
            /*initializer*/ undefined);
            finishNode(parameter, identifier.pos);
            var parameters = createNodeArray([parameter], parameter.pos, parameter.end);
            var equalsGreaterThanToken = parseExpectedToken(38 /* SyntaxKind.EqualsGreaterThanToken */);
            var body = parseArrowFunctionExpressionBody(/*isAsync*/ !!asyncModifier);
            var node = factory.createArrowFunction(asyncModifier, /*typeParameters*/ undefined, parameters, /*type*/ undefined, equalsGreaterThanToken, body);
            return addJSDocComment(finishNode(node, pos));
        }
        function tryParseParenthesizedArrowFunctionExpression() {
            var triState = isParenthesizedArrowFunctionExpression();
            if (triState === 0 /* Tristate.False */) {