[clang] [clang-format] add BinPackLongBracedLists style option (PR #112482)

[Owen Pan via cfe-commits]

================
@@ -14185,6 +14185,32 @@ TEST_F(FormatTest, LayoutCxx11BraceInitializers) {
       "    ffffff, ggggg,  hhhhhh, iiiiii, jjjjjj, kkkkkk,\n"
       "};",
       NoBinPacking);
+  NoBinPacking.BinPackLongBracedLists = false;
+  verifyFormat("const Aaaaaa aaaaa = {\n"
+               "    aaaaa,\n"
+               "    bbbbb,\n"
+               "    ccccc,\n"
+               "    ddddd,\n"
+               "    eeeee,\n"
+               "    ffffff,\n"
+               "    ggggg,\n"
+               "    hhhhhh,\n"
+               "    iiiiii,\n"
+               "    jjjjjj,\n"
+               "    kkkkkk,\n"
+               "    aaaaa,\n"
+               "    bbbbb,\n"
+               "    ccccc,\n"
+               "    ddddd,\n"
+               "    eeeee,\n"
+               "    ffffff,\n"
+               "    ggggg,\n"
+               "    hhhhhh,\n"
+               "    iiiiii,\n"
+               "    jjjjjj,\n"
+               "    kkkkkk,\n"
+               "};",
+               NoBinPacking);
 
----------------
owenca wrote:

```suggestion
  verifyFormat("const Aaaaaa aaaaa = {aaaaa,\n"
               "                      bbbbb,\n"
               "                      ccccc,\n"
               "                      ddddd,\n"
               "                      eeeee,\n"
               "                      ffffff,\n"
               "                      ggggg,\n"
               "                      hhhhhh,\n"
               "                      iiiiii,\n"
               "                      jjjjjj,\n"
               "                      kkkkkk,\n"
               "                      aaaaa,\n"
               "                      bbbbb,\n"
               "                      ccccc,\n"
               "                      ddddd,\n"
               "                      eeeee,\n"
               "                      ffffff,\n"
               "                      ggggg,\n"
               "                      hhhhhh,\n"
               "                      iiiiii};",
               NoBinPacking);

```

https://github.com/llvm/llvm-project/pull/112482