FE1E1 E1E1E1/Prefer symbols instead of strings as hash keys.1E1 (pair (str _) _) 1E1 { ^^(send (const {nil? cbase} :IO) :popen ...) ^^(send (const {nil? cbase} :Open3) {:capture2 :capture2e :capture3 :popen2 :popen2e :popen3} ...) ^^^(send (const {nil? cbase} :Open3) {:pipeline :pipeline_r :pipeline_rw :pipeline_start :pipeline_w} ...) ^^(send {nil? (const {nil? cbase} :Kernel)} {:spawn :system} ...) ^^(send _ {:gsub :gsub!} ...) } 1 E1on_pair1E1 autocorrectE1block in autocorrectE1RuboCopE1CopE1StyleE1StringHashKeysE1MSGE1nodeE1string_hash_key?E1receive_environments_method?E1keyE1 add_offenseE1 correctorE1symbol_contentE1 str_contentE1to_symE1inspectE1 source_rangeE1replaceE1lambdaE1def_node_matcherE1core#define_methodam$Df $0Ow7g~0Pk