[clang-tools-extra] Remove redundant calls to std::unique_ptr<T>::get (NFC) (llvm#138774)

Author: kazutakahirata

clang-tools-extra/clang-change-namespace/ChangeNamespace.cpp

@@ -113,7 +113,7 @@ static SourceLocation getStartOfNextLine(SourceLocation Loc,
                                          const SourceManager &SM,
                                          const LangOptions &LangOpts) {
   std::unique_ptr<Lexer> Lex = getLexerStartingFromLoc(Loc, SM, LangOpts);
-  if (!Lex.get())
+  if (!Lex)
     return SourceLocation();
   llvm::SmallVector<char, 16> Line;
   // FIXME: this is a bit hacky to get ReadToEndOfLine work.
@@ -647,9 +647,8 @@ static SourceLocation getLocAfterNamespaceLBrace(const NamespaceDecl *NsDecl,
                                                  const LangOptions &LangOpts) {
   std::unique_ptr<Lexer> Lex =
       getLexerStartingFromLoc(NsDecl->getBeginLoc(), SM, LangOpts);
-  assert(Lex.get() &&
-         "Failed to create lexer from the beginning of namespace.");
-  if (!Lex.get())
+  assert(Lex && "Failed to create lexer from the beginning of namespace.");
+  if (!Lex)
     return SourceLocation();
   Token Tok;
   while (!Lex->LexFromRawLexer(Tok) && Tok.isNot(tok::TokenKind::l_brace)) {

clang-tools-extra/clangd/unittests/PrerequisiteModulesTest.cpp

@@ -545,8 +545,8 @@ void func() {
   EXPECT_TRUE(Preamble);
   EXPECT_TRUE(Preamble->RequiredModules);
 
-  auto Result = signatureHelp(getFullPath("Use.cpp"), Test.point(),
-                              *Preamble.get(), Use, MarkupKind::PlainText);
+  auto Result = signatureHelp(getFullPath("Use.cpp"), Test.point(), *Preamble,
+                              Use, MarkupKind::PlainText);
   EXPECT_FALSE(Result.signatures.empty());
   EXPECT_EQ(Result.signatures[0].label, "printA(int a) -> void");
   EXPECT_EQ(Result.signatures[0].parameters[0].labelString, "int a");