LSP does not show an error when mutating a const

[Hcode00]

Example:

test "const pointers" {
    const x: u8 = 1;
    x += 1;  // does not give any error 
    const y = &x;
    y.* += 1;  // does not give any error 
}

until you compile it you get this error:

error: cannot assign to constant
    y.* += 1;
    ~~~~^~~~
error: cannot assign to constant
    x += 1;
    ~~^~~~

[Techatrix]

This issue is a very specific example of #2017. There is no need to track this separately so I will be closing this.