Function getJSExtensionForFile

test/fixtures/snapshot/typescript.js:122645–122648

(fileName, options)

            }
        }
        function getJSExtensionForFile(fileName, options) {
            var _a;
            return (_a = tryGetJSExtensionForFile(fileName, options)) !== null && _a !== void 0 ? _a : ts.Debug.fail("Extension ".concat(ts.extensionFromPath(fileName), " is unsupported:: FileName:: ").concat(fileName));
        }
        function tryGetJSExtensionForFile(fileName, options) {
            var ext = ts.tryGetExtensionFromPath(fileName);
            switch (ext) {