Add 'rustc-env:RUST_BACKTRACE=0' to const-pat-ice test

Aaron1011 · Aaron1011 · commit f2dbdc4302b1 · 2019-01-14T01:16:27.000-05:00
This ensures that the test passes, regardless of what the user has set
RUST_BACKTRACE to.
diff --git a/src/test/ui/pattern/const-pat-ice.rs b/src/test/ui/pattern/const-pat-ice.rs
@@ -1,4 +1,5 @@
 // failure-status: 101
+// rustc-env:RUST_BACKTRACE=0
 
 // This is a repro test for an ICE in our pattern handling of constants.
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`// failure-status: 101`
	`2`	`+// rustc-env:RUST_BACKTRACE=0`
`2`	`3`
`3`	`4`	`// This is a repro test for an ICE in our pattern handling of constants.`
`4`	`5`