040000 tree 5b803f9fc9098eddc7b4b90cc3bf14a2afda3962	experimental
100644 blob 8b4bdbd88e4553b15360d466812f0d98ce498f1f	externalize-string-extension.cc
100644 blob b97b4962cf0b20f4fba15f0175a52201dc233438	externalize-string-extension.h
100644 blob 63daa05b5b4cdca70bd20c3e6847a0a984e266db	gc-extension.cc
100644 blob 06ea4ed21a63d40db4f1aebfd5acd165e675affe	gc-extension.h