Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
clang-tools-extra
clang-tools-extra(x86-64)

Requires :

clang-libs(x86-64) = 8.0.0-20181009svn344047.fc28
emacs-filesystem
ld-linux-x86-64.so.2()(64bit)
ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
libLLVM-8svn.so()(64bit)
libLLVM-8svn.so(LLVM_8)(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libclangAST.so.8svn()(64bit)
libclangASTMatchers.so.8svn()(64bit)
libclangApplyReplacements.so.8svn()(64bit)
libclangBasic.so.8svn()(64bit)
libclangChangeNamespace.so.8svn()(64bit)
libclangDaemon.so.8svn()(64bit)
libclangDriver.so.8svn()(64bit)
libclangDynamicASTMatchers.so.8svn()(64bit)
libclangFormat.so.8svn()(64bit)
libclangFrontend.so.8svn()(64bit)
libclangIncludeFixer.so.8svn()(64bit)
libclangLex.so.8svn()(64bit)
libclangQuery.so.8svn()(64bit)
libclangReorderFields.so.8svn()(64bit)
libclangRewrite.so.8svn()(64bit)
libclangSema.so.8svn()(64bit)
libclangTidy.so.8svn()(64bit)
libclangTidyAbseilModule.so.8svn()(64bit)
libclangTidyAndroidModule.so.8svn()(64bit)
libclangTidyBoostModule.so.8svn()(64bit)
libclangTidyBugproneModule.so.8svn()(64bit)
libclangTidyCERTModule.so.8svn()(64bit)
libclangTidyCppCoreGuidelinesModule.so.8svn()(64bit)
libclangTidyFuchsiaModule.so.8svn()(64bit)
libclangTidyGoogleModule.so.8svn()(64bit)
libclangTidyHICPPModule.so.8svn()(64bit)
libclangTidyLLVMModule.so.8svn()(64bit)
libclangTidyMPIModule.so.8svn()(64bit)
libclangTidyMiscModule.so.8svn()(64bit)
libclangTidyModernizeModule.so.8svn()(64bit)
libclangTidyObjCModule.so.8svn()(64bit)
libclangTidyPerformanceModule.so.8svn()(64bit)
libclangTidyPortabilityModule.so.8svn()(64bit)
libclangTidyReadabilityModule.so.8svn()(64bit)
libclangTidyZirconModule.so.8svn()(64bit)
libclangTooling.so.8svn()(64bit)
libclangToolingCore.so.8svn()(64bit)
libclangToolingRefactor.so.8svn()(64bit)
libfindAllSymbols.so.8svn()(64bit)
libgcc_s.so.1()(64bit)
libgcc_s.so.1(GCC_3.0)(64bit)
libm.so.6()(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libstdc++.so.6()(64bit)
libstdc++.so.6(CXXABI_1.3)(64bit)
libstdc++.so.6(CXXABI_1.3.11)(64bit)
libstdc++.so.6(CXXABI_1.3.2)(64bit)
libstdc++.so.6(CXXABI_1.3.3)(64bit)
libstdc++.so.6(GLIBCXX_3.4)(64bit)
libstdc++.so.6(GLIBCXX_3.4.11)(64bit)
libstdc++.so.6(GLIBCXX_3.4.14)(64bit)
libstdc++.so.6(GLIBCXX_3.4.15)(64bit)
libstdc++.so.6(GLIBCXX_3.4.21)(64bit)
libstdc++.so.6(GLIBCXX_3.4.22)(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PartialHardlinkSets) <= 4.0.4-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1
rtld(GNU_HASH)

Content of RPM :
/usr/bin/clang-apply-replacements
/usr/bin/clang-change-namespace
/usr/bin/clang-include-fixer
/usr/bin/clang-query
/usr/bin/clang-refactor
/usr/bin/clang-rename
/usr/bin/clang-reorder-fields
/usr/bin/clang-tidy
/usr/bin/clangd
/usr/bin/find-all-symbols
/usr/bin/modularize
/usr/lib/.build-id
/usr/lib/.build-id/3b/539d4f398c971dd2dac42a64ccc5be436be276
/usr/lib/.build-id/3d/b73fc877b3061d808939057e84045d089977ea
/usr/lib/.build-id/5b
/usr/lib/.build-id/5b/cdcc96e1acaec7612213b874608cf8f9e2dbc7
/usr/lib/.build-id/69
/usr/lib/.build-id/69/35b71cdc5fb92708c151939b522e1d7c992561
/usr/lib/.build-id/92/6eab0c0db9bae753d44a671157bc8f1acb810d
/usr/lib/.build-id/a2
/usr/lib/.build-id/a2/d9a3a963f467b37fbabe36a56459ba9ce0f690
/usr/lib/.build-id/b3
/usr/lib/.build-id/b3/9cf2d37c3781c4cce61fadc8b2b319febe513c
/usr/lib/.build-id/c2/d55fde9efcec5d2df2fef07ef061ce388bb761
/usr/lib/.build-id/ca
/usr/lib/.build-id/ca/820e3d528df49bc9df4e71c83eb31a045aee2a
/usr/lib/.build-id/dd
/usr/lib/.build-id/dd/42a24cbfcf233b882bf67792a573f7ef41af41
/usr/lib/.build-id/f9/a41220f7af569849af1d6e3e6486346606d7e2
/usr/share/clang/clang-include-fixer.py
There is 16 files more in these RPM.