Fix build failures related to PR llvm#164551

Author: SahilPatidar

llvm/unittests/ExecutionEngine/Orc/CMakeLists.txt

@@ -5,6 +5,7 @@ set(LLVM_LINK_COMPONENTS
   IRReader
   JITLink
   Object
+  ObjectYAML
   OrcDebugging
   OrcJIT
   OrcShared

llvm/unittests/ExecutionEngine/Orc/LibraryResolverTest.cpp

@@ -690,14 +690,21 @@ TEST_F(LibraryResolverIT, PathResolverFollowsSymlinks) {
   // Create a symlink temp -> BaseDir (only if filesystem allows it)
   std::string linkName = BaseDir + withext("/link_to_C");
   std::string target = lib("C");
-  ::symlink(target.c_str(), linkName.c_str());
+
+  if (::symlink(target.c_str(), linkName.c_str()) != 0) {
+    perror("symlink failed");
+    FAIL() << "Failed to create symlink: " << strerror(errno);
+  }
 
   auto resolved = PResolver->resolve(linkName, EC);
   ASSERT_TRUE(resolved.has_value());
   EXPECT_FALSE(EC);
   EXPECT_EQ(*resolved, target);
 
-  ::unlink(linkName.c_str()); // cleanup
+  if (::unlink(linkName.c_str()) != 0) {
+    perror("unlink failed");
+    FAIL() << "Failed to remove symlink: " << strerror(errno);
+  }
 }
 
 TEST_F(LibraryResolverIT, PathResolverCachesResults) {