Function releaseCache

test/fixtures/snapshot/typescript.js:119766–119769

* Releases needed properties

(state)

         * Releases needed properties
         */
        function releaseCache(state) {
            state.allFilesExcludingDefaultLibraryFile = undefined;
            state.allFileNames = undefined;
        }
        BuilderState.releaseCache = releaseCache;
        /**
         * Creates a clone of the state