[PATCH] D157149: [Option] Add "Visibility" field and clone the OptTable APIs to use it

[Justin Bogner via Phabricator via cfe-commits]

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This splits OptTable's "Flags" field into "Flags" and "Visibility",
updates the places where we instantiate Option tables, and adds
variants of the OptTable APIs that use Visibility mask instead of
Include/Exclude flags.

We need to do this to clean up a bunch of complexity in the clang
driver's option handling - there's a whole slew of flags like
CoreOption, NoDriverOption, and FlangOnlyOption there today to try to
handle all of the permutations of flags that the various drivers need,
but it really doesn't scale well, as can be seen by things like the
somewhat recently introduced CLDXCOption.

Instead, we'll provide an additive model for visibility that's
separate from the other flags, and have the only "subtractive"
visibility flag be "HelpHidden", which can be handled as a special
case.

Note that we don't actually update the users of the Include/Exclude
APIs here or change the flags that exist in clang at all - that will
come in a follow up that refactors clang's Options.td to use the
increased flexibility this change allows.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D157149

Files:
  clang-tools-extra/clangd/CompileCommands.cpp
  clang/lib/Frontend/CompilerInvocation.cpp
  lld/MachO/DriverUtils.cpp
  lld/MinGW/Driver.cpp
  lld/wasm/Driver.cpp
  llvm/include/llvm/Option/OptParser.td
  llvm/include/llvm/Option/OptTable.h
  llvm/include/llvm/Option/Option.h
  llvm/lib/ExecutionEngine/JITLink/COFFDirectiveParser.cpp
  llvm/lib/Option/OptTable.cpp
  llvm/lib/ToolDrivers/llvm-dlltool/DlltoolDriver.cpp
  llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
  llvm/tools/dsymutil/dsymutil.cpp
  llvm/tools/llvm-cvtres/llvm-cvtres.cpp
  llvm/tools/llvm-cxxfilt/llvm-cxxfilt.cpp
  llvm/tools/llvm-debuginfod/llvm-debuginfod.cpp
  llvm/tools/llvm-dwarfutil/llvm-dwarfutil.cpp
  llvm/tools/llvm-dwp/llvm-dwp.cpp
  llvm/tools/llvm-lipo/llvm-lipo.cpp
  llvm/tools/llvm-mt/llvm-mt.cpp
  llvm/tools/llvm-objcopy/ObjcopyOptions.cpp
  llvm/tools/llvm-rc/llvm-rc.cpp
  llvm/tools/llvm-strings/llvm-strings.cpp
  llvm/tools/llvm-symbolizer/llvm-symbolizer.cpp
  llvm/tools/llvm-tli-checker/llvm-tli-checker.cpp
  llvm/unittests/Option/OptionMarshallingTest.cpp
  llvm/unittests/Option/OptionParsingTest.cpp
  llvm/unittests/Option/Opts.td
  llvm/utils/TableGen/OptParserEmitter.cpp

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