fix(engine) Fix crash with hax_lib::fstar::before in recursive bundles

[maximebuyse]

fixes #1177

The crash was due to a name collision between the item that has the attribute hax_lib::fstar::before and the Quote item created by the TransformHaxLibInline phase. Instead of giving it the exact same name as before, we add a postfix.

[W95Psp]

I guess this was making a collision because of two items sharing a same name below an anonymous const, is that what it is?
The problem is not about the quote I think, but more about the bundling mechanism not ensure unique names while moving items.

I think the naming improvements we talked about yesterday will solve those issues.

[maximebuyse]

I guess this was making a collision because of two items sharing a same name below an anonymous const, is that what it is? The problem is not about the quote I think, but more about the bundling mechanism not ensure unique names while moving items.

I think the naming improvements we talked about yesterday will solve those issues.

The problem is not only about the new names in the bundle. The collision is a problem with the old names because when we rename we need original names to be unique (otherwise if we have two things with the same name and they get different names in the bundle, when we find an occurrence of the old name and have to rename it, which one of the new names do we choose?).

The naming improvements could help by allowing to define a name for the Quote item that is different from the item it is attached to (and doing so in a nicer way that what is in this PR). But we need to do this at the creation of the Quote item.

[maximebuyse]

We should wait for the naming (#1163) to be implemented and use a fresh ident.