Auto merge of #55046 - wesleywiser:no_virtual_call_inlining, r=varkor

[mir-inlining] Don't inline virtual calls

src/test/mir-opt/inline-trait-method.rs

@@ -0,0 +1,31 @@
+// compile-flags: -Z span_free_formats
+
+fn main() {
+    println!("{}", test(&()));
+}
+
+fn test(x: &dyn X) -> u32 {
+    x.y()
+}
+
+trait X {
+    fn y(&self) -> u32 {
+        1
+    }
+}
+
+impl X for () {
+    fn y(&self) -> u32 {
+        2
+    }
+}
+
+// END RUST SOURCE
+// START rustc.test.Inline.after.mir
+// ...
+// bb0: {
+// ...
+//     _0 = const X::y(move _2) -> bb1;
+// }
+// ...
+// END rustc.test.Inline.after.mir