[llvm] Allow multi-member variants in DWARF (PR #139300)

[Hubert Tong via llvm-commits]

================
@@ -0,0 +1,74 @@
+; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
+; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s
+
+; Check for a variant part where a variant has multiple members.
+
+; CHECK: DW_AT_name [DW_FORM_str{{[a-z]+}}]  ({{.*}} = "Discr")
----------------
hubert-reinterpretcast wrote:

@tromey @dwblaikie, please take care to check the regex pattern in future patches.
I have committed a fix here: https://github.com/llvm/llvm-project/commit/64e36da23248b6817e036b5d2c9fa5afb9f2c5e5

https://github.com/llvm/llvm-project/pull/139300