[clang] [clang-format] Fix TableGen nested DAGArg format (PR #155837)

[via cfe-commits]

================
@@ -185,11 +185,18 @@ TEST_F(FormatTestTableGen, SimpleValue6) {
                "      i32:$dst6,                                // dst6\n"
                "      i32:$dst7                                 // dst7\n"
                "  );\n"
-               "  let DAGArgBang = (!cast<SomeType>(\"Some\") i32:$src1,\n"
-               "      i32:$src2);\n"
+               "  let DAGArgBang =\n"
+               "      (!cast<SomeType>(\"Some\") i32:$src1, i32:$src2);\n"
----------------
owenca wrote:

Why does the line wrapping change (for better?) here now?

https://github.com/llvm/llvm-project/pull/155837