[all-commits] [llvm/llvm-project] 19b4f1: [clang][lex] Remove `-index-header-map` (#114459)

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 19b4f17d4c0ae12725050d09f04f85bccc686d8e
      https://github.com/llvm/llvm-project/commit/19b4f17d4c0ae12725050d09f04f85bccc686d8e
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2024-10-31 (Thu, 31 Oct 2024)

  Changed paths:
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Lex/DirectoryLookup.h
    M clang/include/clang/Lex/HeaderSearch.h
    M clang/include/clang/Lex/HeaderSearchOptions.h
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/lib/Lex/HeaderSearch.cpp
    M clang/lib/Lex/InitHeaderSearch.cpp
    M clang/lib/Serialization/ASTReader.cpp
    M clang/lib/Serialization/ASTWriter.cpp
    R clang/test/Driver/index-header-map.c
    M clang/unittests/Lex/HeaderSearchTest.cpp

  Log Message:
  -----------
  [clang][lex] Remove `-index-header-map` (#114459)

This PR removes the `-index-header-map` functionality from Clang. AFAIK
this was only used internally at Apple and is now dead code. The main
motivation behind this change is to enable the removal of
`HeaderFileInfo::Framework` member and reducing the size of that data
structure.

rdar://84036149



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