fix miri tests

src/tools/miri/tests/fail/validity/invalid_bool.rs

@@ -1,3 +1,4 @@
+#![allow(redundant_transmutation)]
 fn main() {
     let _b = unsafe { std::mem::transmute::<u8, bool>(2) }; //~ ERROR: expected a boolean
 }

src/tools/miri/tests/fail/validity/invalid_bool_op.rs

@@ -2,6 +2,7 @@
 // Make sure we find these even with many checks disabled.
 //@compile-flags: -Zmiri-disable-alignment-check -Zmiri-disable-stacked-borrows -Zmiri-disable-validation
 
+#![allow(redundant_transmutation)]
 fn main() {
     let b = unsafe { std::mem::transmute::<u8, bool>(2) };
     let _x = b == std::hint::black_box(true); //~ ERROR: interpreting an invalid 8-bit value as a bool

src/tools/miri/tests/fail/validity/invalid_char.rs

@@ -1,3 +1,4 @@
+#![allow(redundant_transmutation)]
 fn main() {
     assert!(std::char::from_u32(-1_i32 as u32).is_none());
     let _val = match unsafe { std::mem::transmute::<i32, char>(-1) } {

src/tools/miri/tests/fail/validity/invalid_char_op.rs

@@ -2,6 +2,7 @@
 // Make sure we find these even with many checks disabled.
 //@compile-flags: -Zmiri-disable-alignment-check -Zmiri-disable-stacked-borrows -Zmiri-disable-validation
 
+#![allow(redundant_transmutation)]
 fn main() {
     let c = 0xFFFFFFu32;
     assert!(std::char::from_u32(c).is_none());

src/tools/miri/tests/pass/float.rs

@@ -5,7 +5,8 @@
 #![feature(f128)]
 #![feature(f16)]
 #![allow(arithmetic_overflow)]
-#![allow(internal_features, redundant_transmutation)]
+#![allow(internal_features)]
+#![allow(redundant_transmutation)]
 
 use std::any::type_name;
 use std::cmp::min;

src/tools/miri/tests/pass/issues/issue-miri-184.rs

@@ -1,3 +1,4 @@
+#![allow(redundant_transmutation)]
 pub fn main() {
     let bytes: [u8; 8] = unsafe { ::std::mem::transmute(0u64) };
     let _val: &[u8] = &bytes;

src/tools/miri/tests/pass/shims/x86/intrinsics-x86-sse.rs

@@ -1,5 +1,6 @@
 // We're testing x86 target specific features
 //@only-target: x86_64 i686
+#![allow(redundant_transmutation)]
 
 #[cfg(target_arch = "x86")]
 use std::arch::x86::*;