[testsuite] Run lit tests as part of `check-lldb`

[davide]

Summary

Also, fix a missing dependency, as lit requires llvm-config to run.
This is becoming more and more important as we write more FileCheck style tests (see Jonas' last fix to the expression parser)

[vsk]

LGTM

lldb/trunk/lit/CMakeLists.txt

configure_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/Unit/lit.site.cfg.in
   ${CMAKE_CURRENT_BINARY_DIR}/Unit/lit.site.cfg
   )
 
 set(LLDB_TEST_DEPS
   LLDBUnitTests
   lldb
   lldb-test
+  llvm-config
   )
 
 if(NOT LLDB_BUILT_STANDALONE)
   list(APPEND LLDB_TEST_DEPS FileCheck not yaml2obj)
 endif()
   
 # lldb-server is not built on every platform.
 if (TARGET lldb-server)

lldb/trunk/test/CMakeLists.txt

 if (CMAKE_SYSTEM_NAME MATCHES "Windows")
   if (TARGET lld)
     add_dependencies(check-lldb lld)
   else ()
     message(WARNING "lld required to test LLDB on Windows")
   endif ()
 endif ()
 
+# Run the lit-style tests and the unittests as part of the check-lldb target.
+add_dependencies(check-lldb check-lldb-lit)
+
 add_custom_target(lldb-test-depends DEPENDS ${LLDB_TEST_DEPENDS})
 # This will add LLDB's test dependencies to the depenednecies for check-all and
 # include them in the test-depends target.
 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_DEPENDS ${ARG_DEPENDS})