3 files changed, 37 insertions, 0 deletions
diff --git a/src/test/ui/parser/issue-105366.fixed b/src/test/ui/parser/issue-105366.fixed
new file mode 100644
index 00000000000..ad26643c327
--- /dev/null
+++ b/src/test/ui/parser/issue-105366.fixed
@@ -0,0 +1,12 @@
+// run-rustfix
+
+struct Foo;
+
+impl From<i32> for Foo {
+    //~^ ERROR you might have meant to write `impl` instead of `fn`
+    fn from(_a: i32) -> Self {
+        Foo
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/parser/issue-105366.rs b/src/test/ui/parser/issue-105366.rs
new file mode 100644
index 00000000000..311b6a60f1a
--- /dev/null
+++ b/src/test/ui/parser/issue-105366.rs
@@ -0,0 +1,12 @@
+// run-rustfix
+
+struct Foo;
+
+fn From<i32> for Foo {
+    //~^ ERROR you might have meant to write `impl` instead of `fn`
+    fn from(_a: i32) -> Self {
+        Foo
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/parser/issue-105366.stderr b/src/test/ui/parser/issue-105366.stderr
new file mode 100644
index 00000000000..0a7408e2c17
--- /dev/null
+++ b/src/test/ui/parser/issue-105366.stderr
@@ -0,0 +1,13 @@
+error: you might have meant to write `impl` instead of `fn`
+  --> $DIR/issue-105366.rs:5:1
+   |
+LL | fn From<i32> for Foo {
+   | ^^
+   |
+help: replace `fn` with `impl` here
+   |
+LL | impl From<i32> for Foo {
+   | ~~~~
+
+error: aborting due to previous error
+