Add ignores for powerpc and s390x to target-feature-wrong.rs and update references.

Author: dragan.mladjenovic

src/test/ui/target-feature-wrong.rs

@@ -13,6 +13,8 @@
 // ignore-wasm
 // ignore-emscripten
 // ignore-mips
+// ignore-powerpc
+// ignore-s390x
 
 #![feature(target_feature)]
 

src/test/ui/target-feature-wrong.stderr

@@ -1,35 +1,35 @@
 warning: #[target_feature = ".."] is deprecated and will eventually be removed, use #[target_feature(enable = "..")] instead
-  --> $DIR/target-feature-wrong.rs:19:1
+  --> $DIR/target-feature-wrong.rs:21:1
    |
 LL | #[target_feature = "+sse2"]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: the feature named `foo` is not valid for this target
-  --> $DIR/target-feature-wrong.rs:21:18
+  --> $DIR/target-feature-wrong.rs:23:18
    |
 LL | #[target_feature(enable = "foo")]
    |                  ^^^^^^^^^^^^^^
 
 error: #[target_feature(..)] only accepts sub-keys of `enable` currently
-  --> $DIR/target-feature-wrong.rs:23:18
+  --> $DIR/target-feature-wrong.rs:25:18
    |
 LL | #[target_feature(bar)]
    |                  ^^^
 
 error: #[target_feature(..)] only accepts sub-keys of `enable` currently
-  --> $DIR/target-feature-wrong.rs:25:18
+  --> $DIR/target-feature-wrong.rs:27:18
    |
 LL | #[target_feature(disable = "baz")]
    |                  ^^^^^^^^^^^^^^^
 
 error: #[target_feature(..)] can only be applied to `unsafe` function
-  --> $DIR/target-feature-wrong.rs:29:1
+  --> $DIR/target-feature-wrong.rs:31:1
    |
 LL | #[target_feature(enable = "sse2")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: attribute should be applied to a function
-  --> $DIR/target-feature-wrong.rs:33:1
+  --> $DIR/target-feature-wrong.rs:35:1
    |
 LL | #[target_feature(enable = "sse2")]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -38,7 +38,7 @@ LL | mod another {}
    | -------------- not a function
 
 error: cannot use #[inline(always)] with #[target_feature]
-  --> $DIR/target-feature-wrong.rs:36:1
+  --> $DIR/target-feature-wrong.rs:39:1
    |
 LL | #[inline(always)]
    | ^^^^^^^^^^^^^^^^^