Allow dead_code lint on some tests where the lint only fires on non-x86 targets...

src/test/run-pass/asm-in-moved.rs

@@ -12,6 +12,7 @@
 //[mir]compile-flags: -Z borrowck=mir
 
 #![feature(asm)]
+#![allow(dead_code)]
 
 use std::cell::Cell;
 

src/test/run-pass/simple_global_asm.rs

@@ -10,6 +10,7 @@
 
 #![feature(global_asm)]
 #![feature(naked_functions)]
+#![allow(dead_code)]
 
 #[cfg(any(target_arch = "x86_64", target_arch = "x86"))]
 global_asm!(r#"