"Illegal instruction " at ChakraCore/lib/Common/CommonPal.h:160

Following code can trigger this issue.
("Illegal instruction " at ChakraCore/lib/Common/CommonPal.h:160)
```
let v2 = "Nm" && [ ];
let v0 = v3 == false;
delete v3.replace;
this.v3(true);
function v3(...v1) {
for (v0 = v2.slice([ 10061.13653 ], [ ]); v1[3] += [ "vR", v1 ]; v3[0] >>>= [ null ]) {
}
v2.search = v3 && [ ];
this.v3([ v3, 10846.32615 ], v2.constructor);
for (v3 = v0.replace() ? v1(v0.prototype, [ "jaQH", v0 ]) : false; v3 != ")b4="; [ ] !== v3) {
}
}
v0.test();
v2[true] = new Date(v1.constructor);
```
And when ch is built with `--static --sanitize=address,undefined` option it triggers undefined behaviours.

OS: Ubuntu 18.04.1 LTS
Arch: x86_64

Start at ChakraCore/lib/Common/CommonPal.h:160 and reproduce the JavaScript snippet on Ubuntu x86_64. Build ChakraCore with --static --sanitize=address,undefined, then inspect the reported undefined behavior and illegal-instruction path. Done means the reproducer no longer triggers the reported failure or sanitizer diagnostics.

Written by the indexing model from the issue text.