Update code with new lint names
diff --git a/src/test/debuginfo/function-prologue-stepping-no-stack-check.rs b/src/test/debuginfo/function-prologue-stepping-no-stack-check.rs
index 1814eca..359d14d 100644
--- a/src/test/debuginfo/function-prologue-stepping-no-stack-check.rs
+++ b/src/test/debuginfo/function-prologue-stepping-no-stack-check.rs
@@ -245,7 +245,7 @@
 // lldb-check:[...]$31 = 45
 // lldb-command:continue
 
-#![allow(unused_variable)]
+#![allow(unused_variables)]
 
 #[no_stack_check]
 fn immediate_args(a: int, b: bool, c: f64) {