rustdoc-JSON: Rename "object safe" to "dyn compatible"

src/librustdoc/json/conversions.rs

@@ -672,12 +672,12 @@ impl FromClean<clean::Trait> for Trait {
         let tcx = renderer.tcx;
         let is_auto = trait_.is_auto(tcx);
         let is_unsafe = trait_.safety(tcx) == rustc_hir::Safety::Unsafe;
-        let is_object_safe = trait_.is_dyn_compatible(tcx);
+        let is_dyn_compatible = trait_.is_dyn_compatible(tcx);
         let clean::Trait { items, generics, bounds, .. } = trait_;
         Trait {
             is_auto,
             is_unsafe,
-            is_object_safe,
+            is_dyn_compatible,
             items: renderer.ids(items),
             generics: generics.into_json(renderer),
             bounds: bounds.into_json(renderer),

src/rustdoc-json-types/lib.rs

@@ -13,7 +13,7 @@ use serde::{Deserialize, Serialize};
 /// This integer is incremented with every breaking change to the API,
 /// and is returned along with the JSON blob as [`Crate::format_version`].
 /// Consuming code should assert that this value matches the format version(s) that it supports.
-pub const FORMAT_VERSION: u32 = 35;
+pub const FORMAT_VERSION: u32 = 36;
 
 /// The root of the emitted JSON blob.
 ///
@@ -1082,8 +1082,11 @@ pub struct Trait {
     pub is_auto: bool,
     /// Whether the trait is marked as `unsafe`.
     pub is_unsafe: bool,
-    /// Whether the trait is [object safe](https://doc.rust-lang.org/reference/items/traits.html#object-safety).
-    pub is_object_safe: bool,
+    // FIXME(dyn_compat_renaming): Update the URL once the Reference is updated and hits stable.
+    /// Whether the trait is [dyn compatible](https://doc.rust-lang.org/reference/items/traits.html#object-safety)[^1].
+    ///
+    /// [^1]: Formerly known as "object safe".
+    pub is_dyn_compatible: bool,
     /// Associated [`Item`]s that can/must be implemented by the `impl` blocks.
     pub items: Vec<Id>,
     /// Information about the type parameters and `where` clauses of the trait.

tests/rustdoc-json/traits/is_dyn_compatible.rs

@@ -0,0 +1,19 @@
+#![no_std]
+
+//@ has "$.index[*][?(@.name=='FooDynIncompatible')]"
+//@ is "$.index[*][?(@.name=='FooDynIncompatible')].inner.trait.is_dyn_compatible" false
+pub trait FooDynIncompatible {
+    fn foo() -> Self;
+}
+
+//@ has "$.index[*][?(@.name=='BarDynIncompatible')]"
+//@ is "$.index[*][?(@.name=='BarDynIncompatible')].inner.trait.is_dyn_compatible" false
+pub trait BarDynIncompatible<T> {
+    fn foo(i: T);
+}
+
+//@ has "$.index[*][?(@.name=='FooDynCompatible')]"
+//@ is "$.index[*][?(@.name=='FooDynCompatible')].inner.trait.is_dyn_compatible" true
+pub trait FooDynCompatible {
+    fn foo(&self);
+}