tint/cmake: Fix test source paths

Change-Id: I69aec703de0ab96175b5ea79f3d0ae4f5ccb9227
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108201
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: James Price <jrprice@google.com>
Auto-Submit: James Price <jrprice@google.com>
diff --git a/src/tint/CMakeLists.txt b/src/tint/CMakeLists.txt
index e2bc7f8..ff4a84d 100644
--- a/src/tint/CMakeLists.txt
+++ b/src/tint/CMakeLists.txt
@@ -1230,9 +1230,9 @@
       transform/expand_compound_assignment_test.cc
       transform/first_index_offset_test.cc
       transform/for_loop_to_loop_test.cc
-      transform/expand_compound_assignment.cc
+      transform/expand_compound_assignment_test.cc
       transform/localize_struct_array_assignment_test.cc
-      transform/merge_return.cc
+      transform/merge_return_test.cc
       transform/module_scope_var_to_entry_point_param_test.cc
       transform/multiplanar_external_texture_test.cc
       transform/num_workgroups_from_uniform_test.cc