[wasm2js] Fix memory.size#2330

Merged

kripken merged 2 commits intomasterfrom

Sep 6, 2019

Commits on Sep 4, 2019

[wasm2js] Emit __wasm_memory_size() all the time, and not just in memory growth, since it is used by memory.grow() for example
kripken
committed

Commits on Sep 5, 2019

fix bug
kripken
committed