[include-cleaner] Use filename as requested, not resolved path

This was an unintended change in d5297b7.
We don't want to resolve symlinks in filenames, as these might lead to
unexpected spellings, compared to requested filenames.

Author: kadircet

clang-tools-extra/include-cleaner/lib/IncludeSpeller.cpp

@@ -37,8 +37,8 @@ class DefaultIncludeSpeller : public IncludeSpeller {
                         .getCurrentWorkingDirectory())
         WorkingDir = *WD;
       std::string FinalSpelling = Input.HS.suggestPathToFileForDiagnostics(
-          Input.H.resolvedPath(), WorkingDir, Input.Main->tryGetRealPathName(),
-          &IsAngled);
+          Input.H.physical().getName(), WorkingDir,
+          Input.Main->tryGetRealPathName(), &IsAngled);
       return IsAngled ? "<" + FinalSpelling + ">" : "\"" + FinalSpelling + "\"";
     }
     llvm_unreachable("Unknown clang::include_cleaner::Header::Kind enum");