cmake: Fix --find-package mode with imported targets

The change in commit v3.9.0-rc1~116^2~6 (cmakemain: use script role for
-P, 2017-05-11) accidentally left project commands out of find-package
mode, causing packages that provide imported targets to break.

Fixes: #17124

Source/cmakemain.cxx

@@ -306,7 +306,7 @@ int do_cmake(int ac, char const* const* av)
     return ret;
   }
   cmake::Role const role =
-    workingMode == cmake::NORMAL_MODE ? cmake::RoleProject : cmake::RoleScript;
+    workingMode == cmake::SCRIPT_MODE ? cmake::RoleScript : cmake::RoleProject;
   cmake cm(role);
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");

Tests/FindPackageModeMakefileTest/FindFoo.cmake.in

@@ -5,5 +5,7 @@ find_path(FOO_INCLUDE_DIR NAMES foo.h HINTS "@CMAKE_CURRENT_SOURCE_DIR@" )
 set(FOO_LIBRARIES ${FOO_LIBRARY})
 set(FOO_INCLUDE_DIRS "${FOO_INCLUDE_DIR}"  "/some/path/with a space/include" )
 
+add_library(Foo::Foo INTERFACE IMPORTED)
+
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(Foo  DEFAULT_MSG  FOO_LIBRARY FOO_INCLUDE_DIR )