[ORC] Add BitReader/BitWriter to target_link_libraries

Summary:
CompileOnDemandLayer.cpp uses function in these libraries, and builds
with `-DSHARED_LIB=ON` fail without this.

Reviewers: lhames

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D48995

llvm-svn: 336389

llvm/lib/ExecutionEngine/Orc/CMakeLists.txt

@@ -23,3 +23,9 @@ add_llvm_library(LLVMOrcJIT
   DEPENDS
   intrinsics_gen
   )
+
+target_link_libraries(LLVMOrcJIT
+  PRIVATE
+  LLVMBitReader
+  LLVMBitWriter
+  )