Fix linked objects for LLVM code coverage

A mis-named variable made it so no object was linked for LLVM code
coverage builds.

code-coverage.cmake

@@ -306,14 +306,14 @@ function(target_code_coverage TARGET_NAME)
 
  # If there are static or shared objects to also work with, generate the
  # string to add them here
- foreach(LINKED_OBJECT ${target_code_coverage_OBJECTS})
+ foreach(LINK_OBJECT ${target_code_coverage_OBJECTS})
  # Check to see if the target is a shared object
- if(TARGET ${_TARGET})
- get_target_property(LINKED_OBJECT_TYPE ${LINKED_OBJECT} TYPE)
- if(${LINKED_OBJECT_TYPE} STREQUAL "STATIC_LIBRARY"
- OR ${LINKED_OBJECT_TYPE} STREQUAL "SHARED_LIBRARY")
+ if(TARGET ${LINK_OBJECT})
+ get_target_property(LINK_OBJECT_TYPE ${LINK_OBJECT} TYPE)
+ if(${LINK_OBJECT_TYPE} STREQUAL "STATIC_LIBRARY"
+ OR ${LINK_OBJECT_TYPE} STREQUAL "SHARED_LIBRARY")
  set(LINKED_OBJECTS ${LINKED_OBJECTS}
- -object=$<TARGET_FILE:${LINKED_OBJECT}>)
+ -object=$<TARGET_FILE:${LINK_OBJECT}>)
  endif()
  endif()
  endforeach()