Teach structured errors to display short `Ty`

Make it so that every structured error annotated with `#[derive(Diagnostic)]` that has a field of type `Ty<'_>`, the printing of that value into a `String` will look at the thread-local storage `TyCtxt` in order to shorten to a length appropriate with the terminal width. When this happen, the resulting error will have a note with the file where the full type name was written to.

```
error[E0618]: expected function, found `((..., ..., ..., ...), ..., ..., ...)``
 --> long.rs:7:5
  |
6 | fn foo(x: D) { //~ `x` has type `(...
  |        - `x` has type `((..., ..., ..., ...), ..., ..., ...)`
7 |     x(); //~ ERROR expected function, found `(...
  |     ^--
  |     |
  |     call expression requires function
  |
  = note: the full name for the type has been written to 'long.long-type-14182675702747116984.txt'
  = note: consider using `--verbose` to print the full type name to the console
```

1 files changed, 4 insertions, 4 deletions

diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs
index 743812e3a20..890756a17ca 100644
--- a/compiler/rustc_middle/src/mir/interpret/error.rs
+++ b/compiler/rustc_middle/src/mir/interpret/error.rs
@@ -248,7 +248,7 @@ pub enum InvalidMetaKind {
 }
 
 impl IntoDiagArg for InvalidMetaKind {
-    fn into_diag_arg(self) -> DiagArgValue {
+    fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
         DiagArgValue::Str(Cow::Borrowed(match self {
             InvalidMetaKind::SliceTooBig => "slice_too_big",
             InvalidMetaKind::TooBig => "too_big",
@@ -282,7 +282,7 @@ pub struct Misalignment {
 macro_rules! impl_into_diag_arg_through_debug {
     ($($ty:ty),*$(,)?) => {$(
         impl IntoDiagArg for $ty {
-            fn into_diag_arg(self) -> DiagArgValue {
+            fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
                 DiagArgValue::Str(Cow::Owned(format!("{self:?}")))
             }
         }
@@ -401,7 +401,7 @@ pub enum PointerKind {
 }
 
 impl IntoDiagArg for PointerKind {
-    fn into_diag_arg(self) -> DiagArgValue {
+    fn into_diag_arg(self, _: &mut Option<std::path::PathBuf>) -> DiagArgValue {
         DiagArgValue::Str(
             match self {
                 Self::Ref(_) => "ref",
@@ -666,7 +666,7 @@ macro_rules! err_ub_custom {
                 msg: || $msg,
                 add_args: Box::new(move |mut set_arg| {
                     $($(
-                        set_arg(stringify!($name).into(), rustc_errors::IntoDiagArg::into_diag_arg($name));
+                        set_arg(stringify!($name).into(), rustc_errors::IntoDiagArg::into_diag_arg($name, &mut None));
                     )*)?
                 })
             }