Fix the following warning from Rust 1.35:
warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
--> wasmtime-runtime/src/instance.rs:473:25
|
465 | } else if let Some(start_export) = self.module.exports.get("_start") {
| ----------- immutable borrow occurs here
...
473 | self.invoke_function(*func_index)
| ^^^^ ----------- immutable borrow later used here
| |
| mutable borrow occurs here
|
= note: #[warn(mutable_borrow_reservation_conflict)] on by default
= warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
= note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
* Changed `memory_grow` and `memory_index` in `Instance` struct to be `pub(crate)` and added the equivalent proxy methods to the `InstanceHandle` struct.
