Use FileIndex for DW_AT_decl_file and omit .debug_ranges and .debug_rnglists when empty
Use FileIndex for DW_AT_decl_file and omit .debug_ranges and .debug_rnglists when empty

aidancully/rust,graydon/rust,graydon/rust,graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust