Consolidate ad-hoc MIR lints into real pass-manager-based MIR lints

compiler/rustc_mir_transform/src/errors.rs

@@ -9,6 +9,28 @@ use rustc_span::{Span, Symbol};
 
 use crate::fluent_generated as fluent;
 
+#[derive(LintDiagnostic)]
+#[diag(mir_transform_unconditional_recursion)]
+#[help]
+pub(crate) struct UnconditionalRecursion {
+    #[label]
+    pub(crate) span: Span,
+    #[label(mir_transform_unconditional_recursion_call_site_label)]
+    pub(crate) call_sites: Vec<Span>,
+}
+
+#[derive(Diagnostic)]
+#[diag(mir_transform_force_inline_attr)]
+#[note]
+pub(crate) struct InvalidForceInline {
+    #[primary_span]
+    pub attr_span: Span,
+    #[label(mir_transform_callee)]
+    pub callee_span: Span,
+    pub callee: String,
+    pub reason: &'static str,
+}
+
 #[derive(LintDiagnostic)]
 pub(crate) enum ConstMutate {
     #[diag(mir_transform_const_modify)]