[clang] [clang][lex] Remove `-index-header-map` (PR #114459)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff 3452149c059010e834050acd41a64595eb74df11 57c87b5326ebe557fc8830d4a558bd6fabf907fb --extensions cpp,h -- clang/include/clang/Lex/DirectoryLookup.h clang/include/clang/Lex/HeaderSearch.h clang/include/clang/Lex/HeaderSearchOptions.h clang/lib/Driver/ToolChains/Clang.cpp clang/lib/Frontend/CompilerInvocation.cpp clang/lib/Lex/HeaderSearch.cpp clang/lib/Lex/InitHeaderSearch.cpp clang/lib/Serialization/ASTReader.cpp clang/lib/Serialization/ASTWriter.cpp clang/unittests/Lex/HeaderSearchTest.cpp
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<details>
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 010a9de7c1..78a8bac098 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -2032,11 +2032,11 @@ namespace {
       endian::Writer LE(Out, llvm::endianness::little);
       uint64_t Start = Out.tell(); (void)Start;
 
-      unsigned char Flags = (Data.AlreadyIncluded << 6)
-                          | (Data.HFI.isImport << 5)
-                          | (Writer.isWritingStdCXXNamedModules() ? 0 :
-                             Data.HFI.isPragmaOnce << 4)
-                          | (Data.HFI.DirInfo << 1);
+      unsigned char Flags =
+          (Data.AlreadyIncluded << 6) | (Data.HFI.isImport << 5) |
+          (Writer.isWritingStdCXXNamedModules() ? 0
+                                                : Data.HFI.isPragmaOnce << 4) |
+          (Data.HFI.DirInfo << 1);
       LE.write<uint8_t>(Flags);
 
       if (Data.HFI.LazyControllingMacro.isID())

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https://github.com/llvm/llvm-project/pull/114459