1.39.18 (emscripten-core#521)

1.39.17 (emscripten-core#518)

1.39.16 (emscripten-core#503)

Also update precompiled lib tests, for the new cache logic.

1.39.15 (emscripten-core#491)

1.39.14 (emscripten-core#484)

1.39.13 (emscripten-core#474)

1.39.12 (emscripten-core#465)

1.39.11 (emscripten-core#455)

1.39.10 (emscripten-core#452)

1.39.9 (emscripten-core#450)