NFC: Clean up of IntrusiveRefCntPtr construction from raw pointers. (#151545)

Handles clang::DiagnosticsEngine and clang::DiagnosticIDs.

For DiagnosticIDs, this mostly migrates from `new DiagnosticIDs` to
convenience method `DiagnosticIDs::create()`.

Part of cleanup #151026

Author: jyknight

clang-tools-extra/clang-apply-replacements/tool/ClangApplyReplacementsMain.cpp

@@ -97,8 +97,7 @@ int main(int argc, char **argv) {
   cl::ParseCommandLineOptions(argc, argv);
 
   DiagnosticOptions DiagOpts;
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), DiagOpts);
+  DiagnosticsEngine Diagnostics(DiagnosticIDs::create(), DiagOpts);
 
   // Determine a formatting style from options.
   auto FormatStyleOrError = format::getStyle(FormatStyleOpt, FormatStyleConfig,

clang-tools-extra/clang-change-namespace/tool/ClangChangeNamespace.cpp

@@ -128,9 +128,8 @@ int main(int argc, const char **argv) {
   LangOptions DefaultLangOptions;
   DiagnosticOptions DiagOpts;
   clang::TextDiagnosticPrinter DiagnosticPrinter(errs(), DiagOpts);
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), DiagOpts,
-      &DiagnosticPrinter, false);
+  DiagnosticsEngine Diagnostics(DiagnosticIDs::create(), DiagOpts,
+                                &DiagnosticPrinter, false);
   auto &FileMgr = Tool.getFiles();
   SourceManager Sources(Diagnostics, FileMgr);
   Rewriter Rewrite(Sources, DefaultLangOptions);

clang-tools-extra/clang-include-fixer/tool/ClangIncludeFixer.cpp

@@ -454,7 +454,7 @@ int includeFixerMain(int argc, const char **argv) {
 
   // Set up a new source manager for applying the resulting replacements.
   DiagnosticOptions DiagOpts;
-  DiagnosticsEngine Diagnostics(new DiagnosticIDs, DiagOpts);
+  DiagnosticsEngine Diagnostics(DiagnosticIDs::create(), DiagOpts);
   TextDiagnosticPrinter DiagnosticPrinter(outs(), DiagOpts);
   SourceManager SM(Diagnostics, tool.getFiles());
   Diagnostics.setClient(&DiagnosticPrinter, false);

clang-tools-extra/clang-move/tool/ClangMove.cpp

@@ -178,9 +178,8 @@ int main(int argc, const char **argv) {
 
   DiagnosticOptions DiagOpts;
   clang::TextDiagnosticPrinter DiagnosticPrinter(errs(), DiagOpts);
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), DiagOpts,
-      &DiagnosticPrinter, false);
+  DiagnosticsEngine Diagnostics(DiagnosticIDs::create(), DiagOpts,
+                                &DiagnosticPrinter, false);
   auto &FileMgr = Tool.getFiles();
   SourceManager SM(Diagnostics, FileMgr);
   Rewriter Rewrite(SM, LangOptions());

clang-tools-extra/clang-reorder-fields/tool/ClangReorderFields.cpp

@@ -74,9 +74,8 @@ int main(int argc, const char **argv) {
   LangOptions DefaultLangOptions;
   DiagnosticOptions DiagOpts;
   TextDiagnosticPrinter DiagnosticPrinter(errs(), DiagOpts);
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), DiagOpts,
-      &DiagnosticPrinter, false);
+  DiagnosticsEngine Diagnostics(DiagnosticIDs::create(), DiagOpts,
+                                &DiagnosticPrinter, false);
 
   auto &FileMgr = Tool.getFiles();
   SourceManager Sources(Diagnostics, FileMgr);

clang-tools-extra/clang-tidy/ClangTidy.cpp

@@ -96,8 +96,7 @@ class ErrorReporter {
                 llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS)
       : Files(FileSystemOptions(), std::move(BaseFS)),
         DiagPrinter(new TextDiagnosticPrinter(llvm::outs(), DiagOpts)),
-        Diags(IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs), DiagOpts,
-              DiagPrinter),
+        Diags(DiagnosticIDs::create(), DiagOpts, DiagPrinter),
         SourceMgr(Diags, Files), Context(Context), ApplyFixes(ApplyFixes) {
     DiagOpts.ShowColors = Context.getOptions().UseColor.value_or(
         llvm::sys::Process::StandardOutHasColors());
@@ -570,7 +569,7 @@ runClangTidy(clang::tidy::ClangTidyContext &Context,
 
   ClangTidyDiagnosticConsumer DiagConsumer(Context, nullptr, true, ApplyAnyFix);
   auto DiagOpts = std::make_unique<DiagnosticOptions>();
-  DiagnosticsEngine DE(new DiagnosticIDs(), *DiagOpts, &DiagConsumer,
+  DiagnosticsEngine DE(DiagnosticIDs::create(), *DiagOpts, &DiagConsumer,
                        /*ShouldOwnClient=*/false);
   Context.setDiagnosticsEngine(std::move(DiagOpts), &DE);
   Tool.setDiagnosticConsumer(&DiagConsumer);

clang-tools-extra/clang-tidy/ExpandModularHeadersPPCallbacks.cpp

@@ -71,7 +71,7 @@ ExpandModularHeadersPPCallbacks::ExpandModularHeadersPPCallbacks(
       InMemoryFs(new llvm::vfs::InMemoryFileSystem),
       Sources(Compiler.getSourceManager()),
       // Forward the new diagnostics to the original DiagnosticConsumer.
-      Diags(new DiagnosticIDs, DiagOpts,
+      Diags(DiagnosticIDs::create(), DiagOpts,
             new ForwardingDiagnosticConsumer(Compiler.getDiagnosticClient())),
       LangOpts(Compiler.getLangOpts()), HSOpts(Compiler.getHeaderSearchOpts()) {
   // Add a FileSystem containing the extra files needed in place of modular

clang-tools-extra/clang-tidy/plugin/ClangTidyPlugin.cpp

@@ -41,7 +41,7 @@ class ClangTidyPluginAction : public PluginASTAction {
         new ClangTidyDiagnosticConsumer(*Context, &Compiler.getDiagnostics());
     auto DiagOpts = std::make_unique<DiagnosticOptions>();
     auto DiagEngine = std::make_unique<DiagnosticsEngine>(
-        new DiagnosticIDs, *DiagOpts, DiagConsumer);
+        DiagnosticIDs::create(), *DiagOpts, DiagConsumer);
     Context->setDiagnosticsEngine(std::move(DiagOpts), DiagEngine.get());
 
     // Create the AST consumer.

clang-tools-extra/clangd/Preamble.cpp

@@ -659,7 +659,7 @@ buildPreamble(PathRef FileName, CompilerInvocation CI,
   WallTimer PreambleTimer;
   PreambleTimer.startTimer();
   auto BuiltPreamble = PrecompiledPreamble::Build(
-      CI, ContentsBuffer.get(), Bounds, *PreambleDiagsEngine,
+      CI, ContentsBuffer.get(), Bounds, PreambleDiagsEngine,
       Stats ? TimedFS : StatCacheFS, std::make_shared<PCHContainerOperations>(),
       StoreInMemory, /*StoragePath=*/"", CapturedInfo);
 

clang-tools-extra/clangd/SystemIncludeExtractor.cpp

@@ -254,7 +254,7 @@ bool isValidTarget(llvm::StringRef Triple) {
   std::shared_ptr<TargetOptions> TargetOpts(new TargetOptions);
   TargetOpts->Triple = Triple.str();
   DiagnosticOptions DiagOpts;
-  DiagnosticsEngine Diags(new DiagnosticIDs, DiagOpts,
+  DiagnosticsEngine Diags(DiagnosticIDs::create(), DiagOpts,
                           new IgnoringDiagConsumer);
   llvm::IntrusiveRefCntPtr<TargetInfo> Target =
       TargetInfo::CreateTargetInfo(Diags, *TargetOpts);