tests: hackily add some #[inline(never)].

Author: eddyb

src/test/codegen/internalize-closures.rs

@@ -10,11 +10,13 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![feature(stmt_expr_attributes)]
+
 pub fn main() {
 
     // We want to make sure that closures get 'internal' linkage instead of
     // 'weak_odr' when they are not shared between codegen units
     // CHECK: define internal {{.*}}_ZN20internalize_closures4main{{.*}}$u7b$$u7b$closure$u7d$$u7d$
-    let c = |x:i32| { x + 1 };
+    let c = #[inline(never)] |x:i32| { x + 1 };
     let _ = c(1);
 }

src/test/codegen/remap_path_prefix/aux_mod.rs

@@ -10,7 +10,7 @@
 
 // ignore-test: this is not a test
 
-#[inline]
-pub fn some_aux_mod_function() -> i32 {
-    1234
+#[inline(never)]
+pub fn some_aux_mod_function<T>() -> usize {
+    ::std::mem::size_of::<T>()
 }

src/test/codegen/remap_path_prefix/auxiliary/remap_path_prefix_aux.rs

@@ -12,7 +12,7 @@
 
 // compile-flags: -g  -Zremap-path-prefix-from={{cwd}} -Zremap-path-prefix-to=/the/aux-cwd -Zremap-path-prefix-from={{src-base}}/remap_path_prefix/auxiliary -Zremap-path-prefix-to=/the/aux-src
 
-#[inline]
-pub fn some_aux_function() -> i32 {
-    1234
+#[inline(never)]
+pub fn some_aux_function<T>() -> usize {
+    std::mem::size_of::<T>()
 }

src/test/codegen/remap_path_prefix/main.rs

@@ -26,9 +26,9 @@ include!("aux_mod.rs");
 pub static FILE_PATH: &'static str = file!();
 
 fn main() {
-    remap_path_prefix_aux::some_aux_function();
-    aux_mod::some_aux_mod_function();
-    some_aux_mod_function();
+    remap_path_prefix_aux::some_aux_function::<()>();
+    aux_mod::some_aux_mod_function::<()>();
+    some_aux_mod_function::<()>();
 }
 
 // Here we check that local debuginfo is mapped correctly.

src/test/compile-fail/issue-22638.rs

@@ -57,6 +57,7 @@ impl C {
 struct D (Box<A>);
 
 impl D {
+    #[inline(never)]
     pub fn matches<F: Fn()>(&self, f: &F) {
         //~^ ERROR reached the type-length limit while instantiating `D::matches::<[closure
         let &D(ref a) = self;

src/test/compile-fail/type_length_limit.rs

@@ -30,6 +30,9 @@ link! { F, G }
 
 pub struct G;
 
+#[inline(never)]
+fn drop<T>(_: T) {}
+
 fn main() {
     drop::<Option<A>>(None);
 }

src/test/debuginfo/associated-types.rs

@@ -125,6 +125,7 @@ fn assoc_return_value<T: TraitWithAssocType>(arg: T) -> T::Type {
     return arg.get_value();
 }
 
+#[inline(never)]
 fn assoc_tuple<T: TraitWithAssocType>(arg: (T, T::Type)) {
     zzz(); // #break
 }