[clang-tools-extra] [clangd] [C++20] [Modules] Introduce initial support for C++20 Modules (PR #66462)

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git-clang-format --diff 4fed3d374dfca82d0cb32bb444985ece04438376 c9e4d58d1c2ecdbbbc4a518ee1698901d0b74e0d -- clang-tools-extra/clangd/ModuleDependencyScanner.cpp clang-tools-extra/clangd/ModuleDependencyScanner.h clang-tools-extra/clangd/ModulesBuilder.cpp clang-tools-extra/clangd/ModulesBuilder.h clang-tools-extra/clangd/PrerequisiteModules.h clang-tools-extra/clangd/ProjectModules.cpp clang-tools-extra/clangd/ProjectModules.h clang-tools-extra/clangd/unittests/ModuleDependencyScannerTest.cpp clang-tools-extra/clangd/unittests/ModulesTestSetup.h clang-tools-extra/clangd/unittests/PrerequisiteModulesTest.cpp clang-tools-extra/clangd/ClangdServer.cpp clang-tools-extra/clangd/ClangdServer.h clang-tools-extra/clangd/GlobalCompilationDatabase.cpp clang-tools-extra/clangd/GlobalCompilationDatabase.h clang-tools-extra/clangd/ParsedAST.cpp clang-tools-extra/clangd/Preamble.cpp clang-tools-extra/clangd/Preamble.h clang-tools-extra/clangd/TUScheduler.cpp clang-tools-extra/clangd/TUScheduler.h clang-tools-extra/clangd/tool/Check.cpp clang-tools-extra/clangd/tool/ClangdMain.cpp clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp clang-tools-extra/clangd/unittests/FileIndexTests.cpp clang-tools-extra/clangd/unittests/ParsedASTTests.cpp clang-tools-extra/clangd/unittests/PreambleTests.cpp clang-tools-extra/clangd/unittests/TestTU.cpp
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diff --git a/clang-tools-extra/clangd/ProjectModules.h b/clang-tools-extra/clangd/ProjectModules.h
index 98720ee06d47..b9b693c3ec9b 100644
--- a/clang-tools-extra/clangd/ProjectModules.h
+++ b/clang-tools-extra/clangd/ProjectModules.h
@@ -45,7 +45,7 @@ public:
   virtual PathRef
   getSourceForModuleName(StringRef ModuleName,
                          PathRef RequiredSrcFile = PathRef()) = 0;
-  
+
   virtual ~ProjectModules() = default;
 };
 

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https://github.com/llvm/llvm-project/pull/66462