Upgrade to node v8 7.4 which support JIT-less

[mzxyz]

Feature related to the problem:

Using WebAssembly: currently can not use WebAssembly due to the JIT limitation on iOS.

 #if (defined(_M_IX86) || defined(_M_X64)) && !defined(DISABLE_JIT) 
 #define ASMJS_PLAT 
 #endif 
  
 #if defined(ASMJS_PLAT) 
 #define ENABLE_WASM 
 #define ENABLE_WASM_THREADS 
 #define ENABLE_WASM_SIMD 

Solution:

Upgrade to v8 7.4