[clang] [llvm] [Dwarf] Support heterogeneous DW_{OP,AT}s needed for AMDGPU CFI (PR #153883)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions h,cpp,cl -- clang/lib/Basic/Targets/AMDGPU.h clang/test/CodeGenOpenCL/amdgpu-debug-info-pointer-address-space.cl clang/test/CodeGenOpenCL/amdgpu-debug-info-variable-expression.cl llvm/include/llvm/BinaryFormat/Dwarf.h llvm/include/llvm/Support/AMDGPUAddrSpace.h llvm/lib/BinaryFormat/Dwarf.cpp llvm/lib/DebugInfo/DWARF/DWARFExpressionPrinter.cpp llvm/lib/DebugInfo/DWARF/LowLevel/DWARFExpression.cpp llvm/unittests/DebugInfo/DWARF/DWARFExpressionCompactPrinterTest.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/unittests/DebugInfo/DWARF/DWARFExpressionCompactPrinterTest.cpp b/llvm/unittests/DebugInfo/DWARF/DWARFExpressionCompactPrinterTest.cpp
index 42d7ea083..306ce67f9 100644
--- a/llvm/unittests/DebugInfo/DWARF/DWARFExpressionCompactPrinterTest.cpp
+++ b/llvm/unittests/DebugInfo/DWARF/DWARFExpressionCompactPrinterTest.cpp
@@ -144,5 +144,6 @@ TEST_F(DWARFExpressionCompactPrinterTest, Test_OP_LLVM_nop_OP_reg) {
 
 TEST_F(DWARFExpressionCompactPrinterTest, Test_OP_LLVM_user_unknown_subop) {
   TestExprPrinter({DW_OP_LLVM_user, DW_OP_LLVM_form_aspace_address},
-                  "<unknown op DW_OP_LLVM_user (233) subop DW_OP_LLVM_form_aspace_address (2)>");
+                  "<unknown op DW_OP_LLVM_user (233) subop "
+                  "DW_OP_LLVM_form_aspace_address (2)>");
 }

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https://github.com/llvm/llvm-project/pull/153883