Missing span for TypeProperty

[mohammadfawaz]

Closes #1231

These are internal errors and the user shouldn't try to decode them, but it's still worth passing a span to help us debug issues.

E.g. we now get this error for the test case in the issue:

error
  --> proj/src/main.sw:11:16
   |
 9 |
10 |   fn new() -> RawVec<T> {
11 |     let size = size_of::<T>();
   |                ^^^^^^^^^^^^^^ Internal compiler error: Generic type cannot be resolved in IR.
Please file an issue on the repository and include the code that triggered this error.
12 |     RawVec {
13 |       ptr: 0,
   |
____

[mitchmindtree]

LGTM (with my limited knowledge of sway-core)

[otrho]

There might be more of these spanless conversions which could be fixed, dunno. It was mostly written before I'd added spans via metadata to IR.

[mohammadfawaz]

I'll open an issue to track the rest of them :)