anv/zink: cts failures on ICL
dEQP-GLES2.functional.shaders.indexing.tmp_array.vec3_const_write_dynamic_loop_read_fragment,Fail
dEQP-GLES2.functional.shaders.indexing.tmp_array.vec3_const_write_dynamic_loop_read_vertex,Fail
dEQP-GLES2.functional.shaders.indexing.tmp_array.vec3_const_write_dynamic_read_fragment,Fail
dEQP-GLES2.functional.shaders.indexing.tmp_array.vec3_const_write_dynamic_read_vertex,Fail
Are all failing since e1f032ac. They pass on other drivers and have no validation errors, so I think this is an ANV issue.