[llvm] [NFC][TableGen] Fix namespace usage in various files (PR #161839)

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git-clang-format --diff origin/main HEAD --extensions h,cpp -- llvm/include/llvm/Support/X86DisassemblerDecoderCommon.h llvm/lib/TableGen/Error.cpp llvm/lib/TableGen/Main.cpp llvm/lib/TableGen/Record.cpp llvm/lib/TableGen/TGParser.cpp llvm/utils/TableGen/Common/CodeGenDAGPatterns.cpp llvm/utils/TableGen/Common/CodeGenRegisters.cpp llvm/utils/TableGen/Common/InfoByHwMode.cpp llvm/utils/TableGen/Common/PredicateExpander.cpp llvm/utils/TableGen/DXILEmitter.cpp llvm/utils/TableGen/DecoderEmitter.cpp llvm/utils/TableGen/ExegesisEmitter.cpp llvm/utils/TableGen/FastISelEmitter.cpp llvm/utils/TableGen/X86DisassemblerShared.h llvm/utils/TableGen/X86FoldTablesEmitter.cpp llvm/utils/TableGen/X86InstrMappingEmitter.cpp llvm/utils/TableGen/X86MnemonicTables.cpp llvm/utils/TableGen/X86ModRMFilters.h llvm/utils/TableGen/X86RecognizableInstr.h
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``````````diff
diff --git a/llvm/utils/TableGen/ExegesisEmitter.cpp b/llvm/utils/TableGen/ExegesisEmitter.cpp
index 47c578176..bd69919bb 100644
--- a/llvm/utils/TableGen/ExegesisEmitter.cpp
+++ b/llvm/utils/TableGen/ExegesisEmitter.cpp
@@ -115,7 +115,7 @@ ExegesisEmitter::ExegesisEmitter(const RecordKeeper &RK)
 }
 
 static bool EventNumberLess(const ValidationCounterInfo &LHS,
-                     const ValidationCounterInfo &RHS) {
+                            const ValidationCounterInfo &RHS) {
   return LHS.EventNumber < RHS.EventNumber;
 }
 

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https://github.com/llvm/llvm-project/pull/161839