Merge remote-tracking branch 'upstream/master' into ksss/fix-invalid-position-range

# Conflicts:
#	test/rbs/parser_test.rb

Author: ksss

Gemfile

@@ -48,6 +48,7 @@ gem "net-smtp"
 gem 'csv'
 gem 'ostruct'
 gem 'pstore'
+gem "timeout"
 
 group :minitest do
   gem "minitest"

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/soutaro/steep.git
-  revision: fdaad2dee750a982a44723d0d3449e03da2ec9fd
+  revision: 727014c361ae996a80b87948510c83ca480f5e82
   specs:
     steep (2.1.0.dev)
       concurrent-ruby (>= 1.1.10)
@@ -53,7 +53,7 @@ GEM
     ast (2.4.3)
     base64 (0.3.0)
     benchmark (0.5.0)
-    benchmark-ips (2.14.0)
+    benchmark-ips (2.15.1)
     bigdecimal (4.1.2)
     concurrent-ruby (1.3.6)
     connection_pool (3.0.2)
@@ -79,7 +79,7 @@ GEM
       prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
-    json (2.19.5)
+    json (2.19.7)
     json-schema (6.2.0)
       addressable (~> 2.8)
       bigdecimal (>= 3.1, < 5)
@@ -90,7 +90,7 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     logger (1.7.0)
-    marcel (1.1.0)
+    marcel (1.2.1)
     memory_profiler (1.1.0)
     minitest (6.0.6)
       drb (~> 2.0)
@@ -148,7 +148,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    rubocop (1.86.2)
+    rubocop (1.87.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -231,6 +231,7 @@ DEPENDENCIES
   steep!
   tempfile
   test-unit
+  timeout
 
 BUNDLED WITH
   4.0.1

core/io.rbs

@@ -1230,6 +1230,24 @@ class IO < Object
   #
   def ioctl: (Integer integer_cmd, String | Integer argument) -> Integer
 
+  # <!--
+  #   rdoc-file=ext/etc/etc.c
+  #   - pathconf(name)       ->  Integer
+  # -->
+  # Returns pathname configuration variable using fpathconf().
+  #
+  # *name* should be a constant under `Etc` which begins with `PC_`.
+  #
+  # The return value is an integer or nil. nil means indefinite limit.
+  # (fpathconf() returns -1 but errno is not set.)
+  #
+  #     require 'etc'
+  #     IO.pipe {|r, w|
+  #       p w.pathconf(Etc::PC_PIPE_BUF) #=> 4096
+  #     }
+  #
+  def pathconf: (Integer name) -> Integer?
+
   # <!--
   #   rdoc-file=io.c
   #   - isatty -> true or false