Fallout from changes for overflow-checking during constant evaluation.

src/test/compile-fail/non-constant-enum-for-vec-repeat.rs

@@ -8,9 +8,12 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// Note: This test is checking that we forbid a coding pattern that
+// Issue #5873 explicitly wants to allow.
+
 enum State { ST_NULL, ST_WHITESPACE }
 
 fn main() {
     [State::ST_NULL; (State::ST_WHITESPACE as usize)];
-    //~^ ERROR expected constant integer for repeat count, found non-constant expression
+    //~^ ERROR expected constant integer for repeat count, but non-constant path
 }

src/test/compile-fail/non-constant-expr-for-vec-repeat.rs

@@ -12,6 +12,7 @@
 
 fn main() {
     fn bar(n: usize) {
-        let _x = [0; n]; //~ ERROR expected constant integer for repeat count, found variable
+        let _x = [0; n];
+        //~^ ERROR expected constant integer for repeat count, found variable
     }
 }

src/test/run-pass/big-literals.rs

@@ -10,11 +10,16 @@
 
 // pretty-expanded FIXME #23616
 
+#![feature(core)]
+
+// Catch mistakes in the overflowing literals lint.
+#![deny(overflowing_literals)]
+
 pub fn main() {
     assert_eq!(0xffffffff, (-1 as u32));
     assert_eq!(4294967295, (-1 as u32));
     assert_eq!(0xffffffffffffffff, (-1 as u64));
     assert_eq!(18446744073709551615, (-1 as u64));
 
-    assert_eq!(-2147483648 - 1, 2147483647);
+    assert_eq!((-2147483648).wrapping_sub(1), 2147483647);
 }

src/test/run-pass/small-enum-range-edge.rs

@@ -29,8 +29,8 @@ static CLs: Es = Es::Ls;
 static CHs: Es = Es::Hs;
 
 pub fn main() {
-    assert_eq!((Eu::Hu as u8) + 1, Eu::Lu as u8);
-    assert_eq!((Es::Hs as i8) + 1, Es::Ls as i8);
+    assert_eq!((Eu::Hu as u8).wrapping_add(1), Eu::Lu as u8);
+    assert_eq!((Es::Hs as i8).wrapping_add(1), Es::Ls as i8);
     assert_eq!(CLu as u8, Eu::Lu as u8);
     assert_eq!(CHu as u8, Eu::Hu as u8);
     assert_eq!(CLs as i8, Es::Ls as i8);