[ThinLTO] Don't always print ModulesToCompile debugging information (llvm#106769)

Nothing went wrong in this case, we just successfully matched a module
by identifier. No need to print to std::error like we would for
something that should be user-visible.

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

llvm/lib/LTO/LTO.cpp

@@ -1058,8 +1058,8 @@ Error LTO::addThinLTO(BitcodeModule BM, ArrayRef<InputFile::Symbol> Syms,
     for (const std::string &Name : Conf.ThinLTOModulesToCompile) {
       if (BM.getModuleIdentifier().contains(Name)) {
         ThinLTO.ModulesToCompile->insert({BM.getModuleIdentifier(), BM});
-        llvm::errs() << "[ThinLTO] Selecting " << BM.getModuleIdentifier()
-                     << " to compile\n";
+        LLVM_DEBUG(dbgs() << "[ThinLTO] Selecting " << BM.getModuleIdentifier()
+                          << " to compile\n");
       }
     }
   }