Fix some suggestions by the bot

Author: anutosh491

lib/Interpreter/CXCppInterOp.cpp

@@ -271,13 +271,12 @@ static inline compat::Interpreter* getInterpreter(const CXInterpreterImpl* I) {
 }
 
 CXInterpreter clang_createInterpreter(const char* const* argv, int argc) {
-  auto* I = new CXInterpreterImpl(); // NOLINT(*-owning-memory)
+  auto I = std::make_unique<CXInterpreterImpl>(); // NOLINT(*-owning-memory)
 #ifdef CPPINTEROP_USE_CLING
   I->Interp = std::make_unique<compat::Interpreter>(argc, argv);
 #else
   I->Interp = compat::Interpreter::create(argc, argv);
   if (!I->Interp) {
-    delete I;
     return nullptr;
   }
 #endif
@@ -289,7 +288,7 @@ CXInterpreter clang_createInterpreter(const char* const* argv, int argc) {
   // AU->Ctx = &I->Interp->getSema().getASTContext();
   // I->TU.reset(MakeCXTranslationUnit(static_cast<CIndexer*>(clang_createIndex(0,
   // 0)), AU));
-  return I;
+  return I.release();
 }
 
 CXInterpreter clang_createInterpreterFromRawPtr(TInterp_t I) {