ChakraCore JIT problem with array

[lionche]

Version

chakra-1.11.24.0, 1.13.0.0-beta

Test case

function foo() {
    var IntArr2 = new Int32Array();
    Object.defineProperty(IntArr2, "length", {value: 1});
IntArr2[5] = 429496725;
IntArr2[IntArr2.length] = 3;
return [IntArr2,IntArr2.length]
}
for(let i = 0;i<100000;i++) foo()
print(foo())

Execution steps

.ch Testcase.js

Output

,0

Expected result

,1

Description

The correct output of the test case should be ,1 while chakra yields ,0 . This may be caused by the incorrect implementation of chakra JIT compiler.