by factoring out `fn ctor_fields_span` into a separate function

…y` in a buggy manner

resolve: Print import chains on privacy errors

A part of rust-lang#67951 that doesn't require hacks.
r? @estebank

Expansion-driven outline module parsing

After this PR, the parser will not do any conditional compilation or loading of external module files when `mod foo;` is encountered. Instead, the parser only leaves `mod foo;` in place in the AST, with no items filled in. Expansion later kicks in and will load the actual files and do the parsing. This entails that the following is now valid:

```rust
#[cfg(FALSE)]
mod foo {
    mod bar {
        mod baz; // `foo/bar/baz.rs` doesn't exist, but no error!
    }
}
```

Fixes rust-lang#64197.

r? @petrochenkov

VariantSizeDifferences: bail on SizeOverflow

Fixes rust-lang#69485.

r? @oli-obk

resolve: Fix regression in resolution of raw keywords in paths

Fixes rust-lang#63882.

Bump the bootstrap compiler

Use sublice patterns to avoid computing the len

r? @Centril

…unimplemented, r=eddyb

Fiddle `ParamEnv` through to a place that used to use `ParamEnv::empty` in a buggy manner

cc rust-lang#69981 (comment)

r? @eddyb