Add test for Expression Optimization Issue

[Owen1212055]

This includes a test for a strange issue that causes LVT reassignments to be lost.

Source:

double one = 1;
double shouldBeOne = one;
one = 0;
if (one > 1) {
}

System.out.println(shouldBeOne); // -> 1.0

Decompiles to:

double one = 1.0;
one = 0.0;
if (one > 1.0) {
}

System.out.println(one); // -> 0.0

Odd Case

It should be noted that without the if statement, it appears to work fine.

// Decompiles to without if statement
double one = 1.0;
double var5 = 0.0; // <- although interestingly, this LVT name is lost
System.out.println(one);