[CMake] Use PRIVATE when linking LLVM fuzzers.

More fuzzers missed by r319840.

llvm-svn: 319987

llvm/cmake/modules/AddLLVM.cmake

@@ -923,7 +923,7 @@ macro(add_llvm_fuzzer name)
   if( LLVM_LIB_FUZZING_ENGINE )
     set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
     add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
-    target_link_libraries(${name} ${LLVM_LIB_FUZZING_ENGINE})
+    target_link_libraries(${name} PRIVATE ${LLVM_LIB_FUZZING_ENGINE})
     set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
   elseif( LLVM_USE_SANITIZE_COVERAGE )
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")