[clangd] Include SpecialMembersTests.cpp to the unittest.

[hokein]

Summary

This file was missing to be included in the unittest.
And the unittest was failing, this patch fixes some broken issues.

[hokein]

I didn't notice https://reviews.llvm.org/D145921, let's deprecate this one.

clang-tools-extra/clangd/refactor/tweaks/SpecialMembers.cpp

public:
   bool prepare(const Selection &Inputs) override {
     // This tweak relies on =default and =delete.
     if (!Inputs.AST->getLangOpts().CPlusPlus11)
       return false;
 
     // Trigger only on class definitions.
     if (auto *N = Inputs.ASTSelection.commonAncestor())
       Class = const_cast<CXXRecordDecl *>(N->ASTNode.get<CXXRecordDecl>());
-    if (!Class || !Class->isThisDeclarationADefinition())
+    if (!Class || !Class->isThisDeclarationADefinition() ||
+        !(Class->isClass() || Class->isStruct()))
       return false;
 
     // Tweak is only available if some members are missing.
     NeedCopy = !Class->hasUserDeclaredCopyConstructor() ||
                !Class->hasUserDeclaredCopyAssignment();
     NeedMove = !Class->hasUserDeclaredMoveAssignment() ||
                !Class->hasUserDeclaredMoveConstructor();
     return NeedCopy || NeedMove;

clang-tools-extra/clangd/unittests/CMakeLists.txt

add_unittest(ClangdUnitTests ClangdTests
   tweaks/ExtractVariableTests.cpp
   tweaks/MemberwiseConstructorTests.cpp
   tweaks/ObjCLocalizeStringLiteralTests.cpp
   tweaks/ObjCMemberwiseInitializerTests.cpp
   tweaks/PopulateSwitchTests.cpp
   tweaks/RawStringLiteralTests.cpp
   tweaks/RemoveUsingNamespaceTests.cpp
   tweaks/ShowSelectionTreeTests.cpp
+  tweaks/SpecialMembersTests.cpp
   tweaks/SwapIfBranchesTests.cpp
   tweaks/TweakTesting.cpp
   tweaks/TweakTests.cpp
 
   ${REMOTE_TEST_SOURCES}
 
   $<TARGET_OBJECTS:obj.clangDaemonTweaks>
   )

clang-tools-extra/clangd/unittests/tweaks/SpecialMembersTests.cpp

 //===-- SpecialMembersTests.cpp -------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 #include "TweakTesting.h"
-#include "gmock/gmock-matchers.h"
-#include "gmock/gmock.h"
 #include "gtest/gtest.h"
 
 namespace clang {
 namespace clangd {
 namespace {
 
-TWEAK_TEST(SpecialMembers);
+TWEAK_TEST(DeclareCopyMove);
 
-TEST_F(SpecialMembersTest, Test) {
+TEST_F(DeclareCopyMoveTest, Test) {
   EXPECT_AVAILABLE("struct ^S {};");
   EXPECT_UNAVAILABLE("struct S { ^ };");
   EXPECT_UNAVAILABLE("union ^U {};");
   EXPECT_AVAILABLE("struct ^S { S(const S&); S(S&&); };");
   EXPECT_UNAVAILABLE("struct ^S {"
                      "S(const S&); S(S&&);"
                      "S &operator=(S&&); S &operator=(const S&);"
                      "};");
 
-  const char *Output = R"cpp(struct S{S(const S &) = default;
-  S(S &&) = default;
-  S &operator=(const S &) = default;
-  S &operator=(S &&) = default;
+  const char *Output = R"cpp(struct S{S(const S&) = default;
+S(S&&) = default;
+S &operator=(const S&) = default;
+S &operator=(S&&) = default;
 };)cpp";
   EXPECT_EQ(apply("struct ^S{};"), Output);
 
-  Output = R"cpp(struct S{S(const S &) = default;
-S(S &&) = default;
-S &operator=(const S &) = delete;
-S &operator=(S &&) = delete;
+  Output = R"cpp(struct S{S(const S&) = default;
+S(S&&) = default;
+S &operator=(const S&) = delete;
+S &operator=(S&&) = delete;
 int& ref;};)cpp";
   EXPECT_EQ(apply("struct ^S{int& ref;};"), Output);
 }
 
 } // namespace
 } // namespace clangd
 } // namespace clang