cranelift

Alex Crichton 045d6a7310 Remove the need for `HostRef<Store>` (#771 ) * Remove the need for `HostRef<Store>` This commit goes through the public API of the `wasmtime` crate and removes the need for `HostRef<Store>`, as discussed in #708. This commit is accompanied with a few changes: * The `Store` type now also implements `Default`, creating a new `Engine` with default settings and returning that. * The `Store` type now implements `Clone`, and is documented as being a "cheap clone" aka being reference counted. As before there is no supported way to create a deep clone of a `Store`. * All APIs take/return `&Store` or `Store` instead of `HostRef<Store>`, and `HostRef<T>` is left as purely a detail of the C API. * The `global_exports` function is tagged as `#[doc(hidden)]` for now while we await its removal. * The `Store` type is not yet `Send` nor `Sync` due to the usage of `global_exports`, but it is intended to become so eventually. * Touch up comments on some examples * Run rustfmt		5 years ago
..
misc_testsuite	Move stray top-level misc_testsuite to tests (#528)	5 years ago
spec_testsuite@ab59e3a7cb	Update dependencies.	5 years ago
wat	Reorganize tests.	5 years ago
instantiate.rs	Move cranelift dependencies to wasmtime-environ (#669)	5 years ago
wast_testsuites.rs	Remove the need for `HostRef<Store>` (#771)	5 years ago