[llvm] LLVMContext: Cleanup registration of known bundle IDs (PR #120359)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `mlir-nvidia-gcc7` running on `mlir-nvidia` while building `llvm` at step 6 "build-check-mlir-build-only".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/116/builds/7898

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (build-check-mlir-build-only) failure: build (failure)
...
16.032 [1604/15/3013] Building MyExtension.h.inc...
16.034 [1604/14/3014] Building MyExtensionTypes.cpp.inc...
16.043 [1604/13/3015] Building MyExtensionTypes.h.inc...
16.045 [1604/12/3016] Building ShapeInferenceOpInterfaces.h.inc...
16.047 [1604/11/3017] Building MyExtension.h.inc...
16.049 [1604/10/3018] Building ShapeInferenceOpInterfaces.cpp.inc...
16.050 [1604/9/3019] Building MyExtension.cpp.inc...
16.052 [1604/8/3020] Building MyExtension.cpp.inc...
16.078 [1604/7/3021] Linking CXX executable bin/toyc-ch1
16.514 [1604/6/3022] Building CXX object lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o
FAILED: lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o 
CCACHE_CPP2=yes CCACHE_HASHDIR=yes /usr/bin/ccache /usr/bin/g++-7 -DGTEST_HAS_RTTI=0 -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/lib/IR -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.obj/include -I/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -fno-lifetime-dse -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -std=c++1z -MD -MT lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o -MF lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o.d -o lib/IR/CMakeFiles/LLVMCore.dir/LLVMContext.cpp.o -c /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/LLVMContext.cpp
In file included from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/Hashing.h:49:0,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/ArrayRef.h:12,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/ConstantsContext.h:17,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/LLVMContextImpl.h:17,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/LLVMContext.cpp:15:
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/LLVMContext.cpp: In function ‘constexpr llvm::StringRef knownBundleName(unsigned int)’:
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/Support/ErrorHandling.h:144:36: error: call to non-constexpr function ‘void llvm::llvm_unreachable_internal(const char*, const char*, unsigned int)’
   ::llvm::llvm_unreachable_internal(msg, __FILE__, __LINE__)
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/IR/LLVMContext.cpp:60:3: note: in expansion of macro ‘llvm_unreachable’
   llvm_unreachable("covered switch");
   ^~~~~~~~~~~~~~~~
17.584 [1604/5/3023] Building CXX object lib/Object/CMakeFiles/LLVMObject.dir/IRSymtab.cpp.o
19.275 [1604/4/3024] Building X86GenSubtargetInfo.inc...
20.440 [1604/3/3025] Building X86GenInstrInfo.inc...
21.780 [1604/2/3026] Building CXX object lib/MC/MCParser/CMakeFiles/LLVMMCParser.dir/AsmParser.cpp.o
30.420 [1604/1/3027] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
In file included from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/CodeGen/MachineStableHash.h:17:0,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/CodeGen/MachineOutliner.h:21,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/CodeGen/TargetInstrInfo.h:28,
                 from /vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp:59:
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/StableHashing.h: In function ‘llvm::StringRef llvm::get_stable_name(llvm::StringRef)’:
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/StableHashing.h:57:15: warning: unused variable ‘P0’ [-Wunused-variable]
   auto [P0, S0] = Name.rsplit(".content.");
               ^
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/StableHashing.h:62:15: warning: unused variable ‘S1’ [-Wunused-variable]
   auto [P1, S1] = Name.rsplit(".llvm.");
               ^
/vol/worker/mlir-nvidia/mlir-nvidia-gcc7/llvm.src/llvm/include/llvm/ADT/StableHashing.h:63:15: warning: unused variable ‘S2’ [-Wunused-variable]
   auto [P2, S2] = P1.rsplit(".__uniq.");
               ^
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/120359