Nested loop causes .dbg.locals of functions to disappear

[peace-maker]

When a function contains a nested loop, the debug symbols of the local variables stop getting emitted. Only the i and j variables remain, but the nFoo variable is gone. Without the nested loop, the nFoo variable is available in the .dbg.locals.

Tested with https://peace-maker.github.io/sourcepawn-disassembler-web/

public void OnPluginStart()
{
    RegServerCmd("test", Command_Test);
}

public Action Command_Test(int args)
{
    int nFoo = 6;
    PrintToServer("nFoo = %d", nFoo);

    for(int i = 0; i < 1; i++)
    {
        // Adding a nested loop will make the nFoo stack variable disappear from .dbg.locals
        for(int j = 0; j < 2; j++)
        {
        }
    }
    return Plugin_Handled;
}

peace-maker/sp-console-debugger#2