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) = 8.0.0-20181104svn346097.fc27
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(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/19
/usr/lib/.build-id/19/ae2d28dcb2653d694e8f24cff5d304585c608a
/usr/lib/.build-id/1d
/usr/lib/.build-id/1d/841de374959d0adb6307af4fb26bd02aa27dd0
/usr/lib/.build-id/24
/usr/lib/.build-id/24/f3095fa6db8c069dd7d7812c09a969ca77b225
/usr/lib/.build-id/42
/usr/lib/.build-id/42/960ef479c403e24deb3cb2055e2e96960c8b10
/usr/lib/.build-id/46
/usr/lib/.build-id/46/30ab902f94ad8627209461b2051c05b343c5f2
/usr/lib/.build-id/50
/usr/lib/.build-id/50/20f794411a53726bc60919db15ca5e2af86308
/usr/lib/.build-id/6c
/usr/lib/.build-id/6c/87b2f3b0c443b3914c814b1795fde3659ba2bf
/usr/lib/.build-id/94/fa6b77bf537b3d9099431fe3e99c6175609d18
/usr/lib/.build-id/c0
/usr/lib/.build-id/c0/90ac4e9ac4a5f3100968f69625dba6a4ec8c67
/usr/lib/.build-id/c9
There is 10 files more in these RPM.