Auto merge of #111848 - Dylan-DPC:rollup-7jqydzg, r=Dylan-DPC

Rollup of 6 pull requests

Successful merges:

 - #111501 (MIR drive-by cleanups)
 - #111609 (Mark internal functions and traits unsafe to reflect preconditions)
 - #111612 (Give better error when collecting into `&[T]`)
 - #111756 (Rename `{drop,forget}_{copy,ref}` lints to more consistent naming)
 - #111843 (move lcnr to only review types stuff)
 - #111844 (Migrate GUI colors test to original CSS color format)

r? `@ghost`
`@rustbot` modify labels: rollup

compiler/rustc_middle/src/mir/syntax.rs

@@ -749,6 +749,29 @@ pub enum TerminatorKind<'tcx> {
     },
 }
 
+impl TerminatorKind<'_> {
+    /// Returns a simple string representation of a `TerminatorKind` variant, independent of any
+    /// values it might hold (e.g. `TerminatorKind::Call` always returns `"Call"`).
+    pub const fn name(&self) -> &'static str {
+        match self {
+            TerminatorKind::Goto { .. } => "Goto",
+            TerminatorKind::SwitchInt { .. } => "SwitchInt",
+            TerminatorKind::Resume => "Resume",
+            TerminatorKind::Terminate => "Terminate",
+            TerminatorKind::Return => "Return",
+            TerminatorKind::Unreachable => "Unreachable",
+            TerminatorKind::Drop { .. } => "Drop",
+            TerminatorKind::Call { .. } => "Call",
+            TerminatorKind::Assert { .. } => "Assert",
+            TerminatorKind::Yield { .. } => "Yield",
+            TerminatorKind::GeneratorDrop => "GeneratorDrop",
+            TerminatorKind::FalseEdge { .. } => "FalseEdge",
+            TerminatorKind::FalseUnwind { .. } => "FalseUnwind",
+            TerminatorKind::InlineAsm { .. } => "InlineAsm",
+        }
+    }
+}
+
 /// Action to be taken when a stack unwind happens.
 #[derive(Copy, Clone, Debug, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable)]
 #[derive(TypeFoldable, TypeVisitable)]