Add extern template declarations for PragmaHandler, ToolExecutorPlugin and CompilationDatabasePlugin registry in clang

Author: fsfod

clang/include/clang/Lex/Preprocessor.h

@@ -32,6 +32,7 @@
 #include "clang/Lex/PPEmbedParameters.h"
 #include "clang/Lex/Token.h"
 #include "clang/Lex/TokenLexer.h"
+#include "clang/Support/Compiler.h"
 #include "llvm/ADT/APSInt.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/DenseMap.h"
@@ -3060,4 +3061,8 @@ using PragmaHandlerRegistry = llvm::Registry<PragmaHandler>;
 
 } // namespace clang
 
+namespace llvm {
+extern template class CLANG_TEMPLATE_ABI Registry<clang::PragmaHandler>;
+} // namespace llvm
+
 #endif // LLVM_CLANG_LEX_PREPROCESSOR_H

clang/include/clang/Tooling/CompilationDatabasePluginRegistry.h

@@ -9,6 +9,7 @@
 #ifndef LLVM_CLANG_TOOLING_COMPILATIONDATABASEPLUGINREGISTRY_H
 #define LLVM_CLANG_TOOLING_COMPILATIONDATABASEPLUGINREGISTRY_H
 
+#include "clang/Support/Compiler.h"
 #include "clang/Tooling/CompilationDatabase.h"
 #include "llvm/Support/Registry.h"
 
@@ -42,4 +43,9 @@ using CompilationDatabasePluginRegistry =
 } // namespace tooling
 } // namespace clang
 
+namespace llvm {
+extern template class CLANG_TEMPLATE_ABI
+    Registry<clang::tooling::CompilationDatabasePlugin>;
+} // namespace llvm
+
 #endif // LLVM_CLANG_TOOLING_COMPILATIONDATABASEPLUGINREGISTRY_H

clang/include/clang/Tooling/ToolExecutorPluginRegistry.h

@@ -9,6 +9,7 @@
 #ifndef LLVM_CLANG_TOOLING_TOOLEXECUTORPLUGINREGISTRY_H
 #define LLVM_CLANG_TOOLING_TOOLEXECUTORPLUGINREGISTRY_H
 
+#include "clang/Support/Compiler.h"
 #include "clang/Tooling/Execution.h"
 #include "llvm/Support/Registry.h"
 
@@ -20,4 +21,9 @@ using ToolExecutorPluginRegistry = llvm::Registry<ToolExecutorPlugin>;
 } // namespace tooling
 } // namespace clang
 
+namespace llvm {
+extern template class CLANG_TEMPLATE_ABI
+    Registry<clang::tooling::ToolExecutorPlugin>;
+} // namespace llvm
+
 #endif // LLVM_CLANG_TOOLING_TOOLEXECUTORPLUGINREGISTRY_H