Add failing from_over_into test case

Author: KonaeAkira

tests/ui/from_over_into.fixed

@@ -105,4 +105,15 @@ fn issue_12138() {
     }
 }
 
+fn issue_112502() {
+    struct MyInt(i64);
+
+    impl From<MyInt> for i64 {
+        //~^ from_over_into
+        fn from(val: MyInt) -> Self {
+            val.0
+        }
+    }
+}
+
 fn main() {}

tests/ui/from_over_into.rs

@@ -105,4 +105,15 @@ fn issue_12138() {
     }
 }
 
+fn issue_112502() {
+    struct MyInt(i64);
+
+    impl Into<i64> for MyInt {
+        //~^ from_over_into
+        fn into(self: MyInt) -> i64 {
+            self.0
+        }
+    }
+}
+
 fn main() {}

tests/ui/from_over_into.stderr

@@ -107,5 +107,21 @@ LL |
 LL ~         fn from(val: Hello) {}
    |
 
-error: aborting due to 7 previous errors
+error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true
+  --> tests/ui/from_over_into.rs:111:5
+   |
+LL |     impl Into<i64> for MyInt {
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: `impl From<Local> for Foreign` is allowed by the orphan rules, for more information see
+           https://doc.rust-lang.org/reference/items/implementations.html#trait-implementation-coherence
+help: replace the `Into` implementation with `From<issue_112502::MyInt>`
+   |
+LL ~     impl From<MyInt> for i64 {
+LL |
+LL ~         fn from(val: MyInt) -> Self {
+LL ~             val.0
+   |
+
+error: aborting due to 8 previous errors