update array-map test for removed alloca

Author: erikdesjardins

tests/codegen/array-map.rs

@@ -30,7 +30,6 @@ pub fn short_integer_map(x: [u32; 8]) -> [u32; 8] {
 pub fn long_integer_map(x: [u32; 512]) -> [u32; 512] {
     // CHECK: start:
     // CHECK-NEXT: alloca [512 x i32]
-    // CHECK-NEXT: alloca %"core::mem::manually_drop::ManuallyDrop<[u32; 512]>"
     // CHECK-NOT: alloca
     // CHECK: mul <{{[0-9]+}} x i32>
     // CHECK: add <{{[0-9]+}} x i32>