Place the ignore comments in the correct file for test issue-18804

Signed-off-by: Gabriel Smith <ga29smith@gmail.com>

Author: yodaldevoid

src/test/run-pass/issue-18804/auxiliary/lib.rs

@@ -8,9 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// ignore-asmjs no weak symbol support
-// ignore-emscripten no weak symbol support
-
 #![crate_type = "rlib"]
 #![feature(linkage)]
 

src/test/run-pass/issue-18804/main.rs

@@ -11,6 +11,9 @@
 // Test for issue #18804, #[linkage] does not propagate thorugh generic
 // functions. Failure results in a linker error.
 
+// ignore-asmjs no weak symbol support
+// ignore-emscripten no weak symbol support
+
 // aux-build:lib.rs
 
 extern crate lib;