Bugfix: don't fail on nested type definitions with no `name` field.
Bugfix: don't fail on nested type definitions with no `name` field.

common-workflow-language/cwltool,dleehr/cwltool,chapmanb/cwltool,SciDAP/cwltool,chapmanb/cwltool,SciDAP/cwltool,dleehr/cwltool,SciDAP/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,jeremiahsavage/cwltool,jeremiahsavage/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,common-workflow-language/cwltool,chapmanb/cwltool,SciDAP/cwltool,chapmanb/cwltool,common-workflow-language/cwltool