add the test

Author: LorrensP-2158466

tests/ui/imports/auxiliary/same-res-ambigious-extern-macro.rs

@@ -0,0 +1,7 @@
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+#[proc_macro_derive(RustEmbed)]
+pub fn rust_embed_derive(_input: TokenStream) -> TokenStream {
+  TokenStream::new()
+}

tests/ui/imports/auxiliary/same-res-ambigious-extern.rs

@@ -0,0 +1,10 @@
+//@ proc-macro: same-res-ambigious-extern-macro.rs
+
+#[allow(unused_imports)]
+#[macro_use]
+extern crate same_res_ambigious_extern_macro;
+pub use same_res_ambigious_extern_macro::*;
+
+pub trait RustEmbed {}
+
+pub use RustEmbed as Embed;

tests/ui/imports/same-res-ambigious.rs

@@ -0,0 +1,11 @@
+//@ check-pass
+//@ aux-build: same-res-ambigious-extern.rs
+
+extern crate same_res_ambigious_extern;
+use same_res_ambigious_extern::Embed;
+
+
+#[derive(Embed)]
+struct Foo{}
+
+fn main(){}