[clang] ObjcRuntime.h: Add mips64, aarch64, and riscv64 to non-legacy dispatch (PR #76694)

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git-clang-format --diff f33245a5c4411ce586efe2e12fc29aabb241f5e1 97a9a2753c52d6b377d929a4a6e717ab3c69b68d -- clang/include/clang/Basic/ObjCRuntime.h
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/include/clang/Basic/ObjCRuntime.h b/clang/include/clang/Basic/ObjCRuntime.h
index 29392ad0a0..adfc04e3bd 100644
--- a/clang/include/clang/Basic/ObjCRuntime.h
+++ b/clang/include/clang/Basic/ObjCRuntime.h
@@ -102,15 +102,15 @@ public:
     // version 1.6 onwards
     if (getKind() == GNUstep && getVersion() >= VersionTuple(1, 6)) {
       switch (Arch) {
-        case llvm::Triple::arm:
-        case llvm::Triple::x86:
-        case llvm::Triple::x86_64:
-        case llvm::Triple::aarch64:
-        case llvm::Triple::mips64:
-        case llvm::Triple::riscv64:
-          return false;
-        default:
-          return true;
+      case llvm::Triple::arm:
+      case llvm::Triple::x86:
+      case llvm::Triple::x86_64:
+      case llvm::Triple::aarch64:
+      case llvm::Triple::mips64:
+      case llvm::Triple::riscv64:
+        return false;
+      default:
+        return true;
       }
     }
     else if ((getKind() ==  MacOSX) && isNonFragile() &&

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https://github.com/llvm/llvm-project/pull/76694