[cppia] Wrong parentheses priority for Int32

[flashultra]

The following code

var x:Int32 = 1290555;
var d:Int = -13;
x = x * (2 - (d * x));
trace("x: "+x);

will return -2147483648 (for cppia target). The correct result should be 991146299

[flashultra]

Something is wrong with the parentheses order.
The following works x = 2*x - x*(d * x); or x = (2 - (d * x)) * x;

[tobil4sk]

This is a bug in the cppia interp runtime (works fine on jit). The reason parenthesis order seemed to affect it is because x = x * ... is turned to x *= ..., and the bug happens with arithmetic assignment operators. With x = ... * x the bug doesn't happen anymore.

The multiplication is done as a float which leads to an infinity value, rather than the usual int overflow behaviour. Converting the infinity value to int is where the -2147483648 comes from.

@Simn Please could you transfer this to the hxcpp repo since it is a runtime bug?