syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"tcx.erase_regions(GenericArgs::identity_for_item(tcx,"}]}
source_snippet:                     tcx.erase_regions(GenericArgs::identity_for_item(tcx, typeck_root_def_id));
context_before:                 let parent_args =
context_after:                 let args = InlineConstArgs::new(tcx, InlineConstArgsParts { parent_args, ty }).args;