[llvm] [AArch64] Add support for SHF_AARCH64_PURECODE ELF section flag (1/3) (PR #125687)

[Csanád Hajdú via llvm-commits]

================
@@ -1337,6 +1337,10 @@ const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
   ENUM_ENT(XCORE_SHF_DP_SECTION, "")
 };
 
+const EnumEntry<unsigned> ElfAArch64SectionFlags[] = {
+    ENUM_ENT(SHF_AARCH64_PURECODE, "y"),
----------------
Il-Capitano wrote:

You're right, I hadn't noticed that.
However `clang-format` doesn't seem to like the formatting of the other variables, it either wants to do
```c++
const EnumEntry<unsigned> ElfAArch64SectionFlags[] = {
    ENUM_ENT(SHF_AARCH64_PURECODE, "y"),
};
```
or
```c++
const EnumEntry<unsigned> ElfAArch64SectionFlags[] = {
    ENUM_ENT(SHF_AARCH64_PURECODE, "y")};
```
depending on if there's a trailing comma. No 2 space indentation or closing brace on a new line without a trailing comma. 

Is there any guidance on what should be done for new code in this case?

https://github.com/llvm/llvm-project/pull/125687