Detect cases where ? is applied on a type that could be coming from a different crate version than expected

[estebank]

error[E0277]: `?` couldn't convert the error to `dependency::Error`
  --> replaced
   |
LL | fn main() -> Result<(), Error> {
   |              ----------------- expected `dependency::Error` because of this
...
LL |     Err(Error2)?;
   |     -----------^ the trait `From<Error2>` is not implemented for `dependency::Error`
   |     |
   |     this can't be annotated with `?` because it has type `Result<_, Error2>`
   |
   = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
help: the trait `From<Error2>` is not implemented for `dependency::Error`
      but trait `From<()>` is implemented for it
  --> replaced
   |
LL | impl From<()> for Error {
   | ^^^^^^^^^^^^^^^^^^^^^^^
   = help: for that trait implementation, expected `()`, found `Error2`
   = note: there are multiple different versions of crate `dependency` in the dependency graph
   = help: you can use `cargo tree` to explore your dependency tree

The existing checks rely on having access to the actual types/traits that diverged to detect they are called the same, come from different crates with the same name. The new check is less specific, merely looking to see if the crate name the involved type belongs has multiple crates.

CC #78552.

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[estebank]

This is the output I get:

~/workspace/rust-issue-78552-repro/repro-runtime$ cargo +dev build
   Compiling repro-runtime v0.1.0 (/home/gh-estebank/workspace/rust-issue-78552-repro/repro-runtime)
error[E0277]: `?` couldn't convert the error to `Status`
   --> repro-runtime/src/main.rs:5:78
    |
  4 | fn main() -> Result<(), Status> {
    |              ------------------ expected `Status` because of this
  5 |     Err(ApplicationError::ImpossibleCondition("you tried to run it!".into()))?
    |     -------------------------------------------------------------------------^ the trait `From<ApplicationError>` is not implemented for `Status`
    |     |
    |     this can't be annotated with `?` because it has type `Result<_, ApplicationError>`
    |
    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
help: the following other types implement trait `From<T>`
   --> /home/gh-estebank/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/tonic-0.14.2/src/status.rs:709:1
    |
709 | impl From<h2::Error> for Status {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Status` implements `From<h2::error::Error>`
...
722 | impl From<std::io::Error> for Status {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Status` implements `From<std::io::Error>`
    = note: there are multiple different versions of crate `tonic` in the dependency graph
    = help: you can use `cargo tree` to explore your dependency tree

For more information about this error, try `rustc --explain E0277`.
error: could not compile `repro-runtime` (bin "repro-runtime") due to 1 previous error