Add test for macro_rules! invoking a proc-macro with capture groups

src/test/ui/proc-macro/macro-rules-capture.rs

@@ -0,0 +1,18 @@
+// aux-build: test-macros.rs
+
+extern crate test_macros;
+use test_macros::recollect_attr;
+
+macro_rules! reemit {
+ ($name:ident => $($token:expr)*) => {
+
+ #[recollect_attr]
+ pub fn $name() {
+ $($token)*;
+ }
+ }
+}
+
+reemit! { foo => 45u32.into() } //~ ERROR type annotations
+
+fn main() {}

src/test/ui/proc-macro/macro-rules-capture.stderr

@@ -0,0 +1,12 @@
+error[E0282]: type annotations needed
+ --> $DIR/macro-rules-capture.rs:16:24
+ |
+LL | reemit! { foo => 45u32.into() }
+ | ------^^^^--
+ | | |
+ | | cannot infer type for type parameter `T` declared on the trait `Into`
+ | this method call resolves to `T`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0282`.