Add test case for local macro (which is different from foreign crate …

…macros)

src/test/ui/typeck/issue-81943.rs

@@ -2,4 +2,8 @@ fn f<F: Fn(i32)>(f: F) { f(0); }
 fn main() {
   f(|x| dbg!(x)); //~ERROR
   f(|x| match x { tmp => { tmp } }); //~ERROR
+  macro_rules! d {
+    ($e:expr) => { match $e { x => { x } } }
+  }
+  f(|x| d!(x)); //~ERROR
 }

src/test/ui/typeck/issue-81943.stderr

@@ -15,6 +15,20 @@ LL |   f(|x| match x { tmp => { tmp } });
    |         |                  expected `()`, found `i32`
    |         expected this to be `()`
 
-error: aborting due to 2 previous errors
+error[E0308]: mismatched types
+  --> $DIR/issue-81943.rs:6:38
+   |
+LL |     ($e:expr) => { match $e { x => { x } } }
+   |                    ------------------^----- help: consider using a semicolon here
+   |                    |                 |
+   |                    |                 expected `()`, found `i32`
+   |                    expected this to be `()`
+LL |   }
+LL |   f(|x| d!(x));
+   |         ----- in this macro invocation
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0308`.