Auto merge of #84244 - ABouttefeux:closure-return-conflict-suggest, r=estebank

fix incomplete diagnostic notes when closure returns conflicting for genric type

fixes #84128
Correctly report the span on for conflicting return type in closures

src/test/ui/closures/issue-84128.rs

@@ -0,0 +1,16 @@
+// test for issue 84128
+// missing suggestion for similar ADT type with diffetent generic paramenter
+// on closure ReturnNoExpression
+
+struct Foo<T>(T);
+
+fn main() {
+    || {
+        if false {
+            return Foo(0);
+        }
+
+        Foo(())
+        //~^ ERROR mismatched types [E0308]
+    };
+}

src/test/ui/closures/issue-84128.stderr

@@ -0,0 +1,15 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-84128.rs:13:13
+   |
+LL |         Foo(())
+   |             ^^ expected integer, found `()`
+   |
+note: return type inferred to be `{integer}` here
+  --> $DIR/issue-84128.rs:10:20
+   |
+LL |             return Foo(0);
+   |                    ^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.