rewrite emit test

Author: Oneirical

tests/run-make/emit/Makefile

@@ -0,0 +1,19 @@
+// A bug from 2015 would cause errors when emitting multiple types of files
+// in the same rustc call. A fix was created in #30452. This test checks that
+// the fix did not accidentally break compilation.
+// See https://github.com/rust-lang/rust/pull/30452
+
+//@ ignore-cross-compile
+
+use run_make_support::{run, rustc};
+
+fn main() {
+    let opt_levels = ["0", "1", "2", "3", "s", "z"];
+    for level in opt_levels {
+        rustc().opt_level(level).emit("llvm-bc,llvm-ir,asm,obj,link").input("test-24876.rs");
+    }
+    for level in opt_levels {
+        rustc().opt_level(level).emit("llvm-bc,llvm-ir,asm,obj,link").input("test-26235.rs");
+        run("test-26235");
+    }
+}