Clang: Show LLVM_LIBS and LLVM_INCLUDEPATH

Change-Id: I915a56786f29b2c6bef5b7b31a68c1a8961f241a
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/clangcodemodel/clangcodemodel.pro

 include(../../qtcreatorplugin.pri)
 include(clang_installation.pri)
 
-message("Building with Clang from $$LLVM_INSTALL_DIR")
+message("Building ClangCodeModel plugin with Clang from $$LLVM_INSTALL_DIR")
+message("  INCLUDEPATH += $$LLVM_INCLUDEPATH")
+message("  LIBS += $$LLVM_LIBS")
 
 LIBS += $$LLVM_LIBS
 INCLUDEPATH += $$LLVM_INCLUDEPATH