fix #11542: FP memleak when using memcpy() with pointer

[ludviggunne]

Work in progress.

Just wanted to check if I'm heading in the right direction and using the internal API correctly.

Is there a way to check if a variable is a pointer to a pointer?

[ludviggunne]

Perhaps adding Variable::getIndirectionLevel() would be useful? Shouldn't be too hard to implement.

[chrchr-github]

var->valueType()->pointer should be 2 in this case.

[ludviggunne]

var->valueType()->pointer should be 2 in this case.

Good to know!