rework error messages for incorrect inherent impls

4 files changed, 20 insertions, 4 deletions

diff --git a/src/test/ui/error-codes/E0117.rs b/src/test/ui/error-codes/E0117.rs
index dbbac514801..22b48657385 100644
--- a/src/test/ui/error-codes/E0117.rs
+++ b/src/test/ui/error-codes/E0117.rs
@@ -1,5 +1,4 @@
 impl Drop for u32 {} //~ ERROR E0117
 //~| ERROR the `Drop` trait may only be implemented for structs, enums, and unions
 
-fn main() {
-}
+fn main() {}
diff --git a/src/test/ui/error-codes/E0118.rs b/src/test/ui/error-codes/E0118.rs
new file mode 100644
index 00000000000..aaef8113b8a
--- /dev/null
+++ b/src/test/ui/error-codes/E0118.rs
@@ -0,0 +1,7 @@
+impl fn(u8) { //~ ERROR E0118
+    fn get_state(&self) -> String {
+       String::new()
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/error-codes/E0118.stderr b/src/test/ui/error-codes/E0118.stderr
new file mode 100644
index 00000000000..296fb5d664a
--- /dev/null
+++ b/src/test/ui/error-codes/E0118.stderr
@@ -0,0 +1,11 @@
+error[E0118]: no nominal type found for inherent implementation
+  --> $DIR/E0118.rs:1:6
+   |
+LL | impl fn(u8) {
+   |      ^^^^^^ impl requires a nominal type
+   |
+   = note: either implement a trait on it or create a newtype to wrap it instead
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0118`.
diff --git a/src/test/ui/error-codes/E0120.rs b/src/test/ui/error-codes/E0120.rs
index 287a4088183..a0a301a06e2 100644
--- a/src/test/ui/error-codes/E0120.rs
+++ b/src/test/ui/error-codes/E0120.rs
@@ -5,5 +5,4 @@ impl Drop for dyn MyTrait {
     fn drop(&mut self) {}
 }
 
-fn main() {
-}
+fn main() {}