Rollup merge of #120735 - nnethercote:rm-some-unchecked_claims, r=oli-obk

Remove some `unchecked_claim_error_was_emitted` calls

We want to drive the number of these calls down as much as possible. This PR gets rid of a bunch of them.

r? ``@oli-obk``

compiler/rustc_span/src/lib.rs

@@ -2477,10 +2477,9 @@ where
 pub struct ErrorGuaranteed(());
 
 impl ErrorGuaranteed {
-    /// To be used only if you really know what you are doing... ideally, we would find a way to
-    /// eliminate all calls to this method.
-    #[deprecated = "`Session::span_delayed_bug` should be preferred over this function"]
-    pub fn unchecked_claim_error_was_emitted() -> Self {
+    /// Don't use this outside of `DiagCtxtInner::emit_diagnostic`!
+    #[deprecated = "should only be used in `DiagCtxtInner::emit_diagnostic`"]
+    pub fn unchecked_error_guaranteed() -> Self {
         ErrorGuaranteed(())
     }
 }