remove unused constant error variants

diff --git a/src/librustc_const_eval/eval.rs b/src/librustc_const_eval/eval.rs
index c2ac3d838c8d071074982ad2997dcb84e083eeea..4fd4daf09980b0203e97b1415ea9764388bdc478 100644 (file)
--- a/src/librustc_const_eval/eval.rs
+++ b/src/librustc_const_eval/eval.rs
@@ -377,13 +377,6 @@ pub enum ErrKind {
     NotOn(ConstVal),
     CallOn(ConstVal),
 
-    NegateWithOverflow(i64),
-    AddiWithOverflow(i64, i64),
-    SubiWithOverflow(i64, i64),
-    MuliWithOverflow(i64, i64),
-    AdduWithOverflow(u64, u64),
-    SubuWithOverflow(u64, u64),
-    MuluWithOverflow(u64, u64),
     DivideByZero,
     DivideWithOverflow,
     ModuloByZero,
@@ -439,13 +432,6 @@ pub fn description(&self) -> Cow<str> {
             NotOn(ref const_val) => format!("not on {}", const_val.description()).into_cow(),
             CallOn(ref const_val) => format!("call on {}", const_val.description()).into_cow(),
 
-            NegateWithOverflow(..) => "attempted to negate with overflow".into_cow(),
-            AddiWithOverflow(..) => "attempted to add with overflow".into_cow(),
-            SubiWithOverflow(..) => "attempted to sub with overflow".into_cow(),
-            MuliWithOverflow(..) => "attempted to mul with overflow".into_cow(),
-            AdduWithOverflow(..) => "attempted to add with overflow".into_cow(),
-            SubuWithOverflow(..) => "attempted to sub with overflow".into_cow(),
-            MuluWithOverflow(..) => "attempted to mul with overflow".into_cow(),
             DivideByZero         => "attempted to divide by zero".into_cow(),
             DivideWithOverflow   => "attempted to divide with overflow".into_cow(),
             ModuloByZero         => "attempted remainder with a divisor of zero".into_cow(),