[1.6>master] [MERGE #3042 @Cellule] -forcenative for wasm & asm.js
[1.6>master] [MERGE #3042 @Cellule] -forcenative for wasm & asm.js

Merge pull request #3042 from Cellule:wasm/forcenative

This fix makes wasm and asm.js respect the -forcenative flag.

mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore,Microsoft/ChakraCore,mrkmarron/ChakraCore