Add Symbol arguments to BigDecimal.mode, #round in BigDecimal (#1001)

Author: trinistr

gems/bigdecimal/3.1/_test/test.rb

@@ -21,6 +21,10 @@
 12r.to_d(3)
 0i.to_d
 
+BigDecimal("1.234").round(2)
+BigDecimal("1.234").round(2, BigDecimal::ROUND_UP)
+BigDecimal("1.234").round(2, :up)
+
 require "bigdecimal/math"
 
 BigMath.E(10)

gems/bigdecimal/3.1/bigdecimal.rbs

@@ -192,7 +192,7 @@ class BigDecimal < Numeric
   #     `:ceil`.
   # *   `ROUND_FLOOR`: Round toward negative infinity. Aliased as `:floor:`.
   #
-  def self.mode: (Integer mode, ?Integer? value) -> Integer?
+  def self.mode: (Integer mode, ?(Integer | Symbol | nil) value) -> Integer?
 
   # <!--
   #   rdoc-file=ext/bigdecimal/bigdecimal.c
@@ -854,7 +854,7 @@ class BigDecimal < Numeric
   # is performed; see BigDecimal.mode.
   #
   def round: () -> Integer
-           | (Numeric n, ?Integer mode) -> BigDecimal
+           | (Numeric n, ?(Integer | Symbol) mode) -> BigDecimal
 
   # <!--
   #   rdoc-file=ext/bigdecimal/bigdecimal.c

gems/bigdecimal/4.0/_test/test.rb

@@ -21,6 +21,10 @@
 12r.to_d(3)
 0i.to_d
 
+BigDecimal("1.234").round(2)
+BigDecimal("1.234").round(2, BigDecimal::ROUND_UP)
+BigDecimal("1.234").round(2, :up)
+
 require "bigdecimal/math"
 
 BigMath.E(10)

gems/bigdecimal/4.0/bigdecimal.rbs

@@ -192,7 +192,7 @@ class BigDecimal < Numeric
   #     `:ceil`.
   # *   `ROUND_FLOOR`: Round toward negative infinity. Aliased as `:floor:`.
   #
-  def self.mode: (Integer mode, ?Integer? value) -> Integer?
+  def self.mode: (Integer mode, ?(Integer | Symbol | nil) value) -> Integer?
 
   # <!--
   #   rdoc-file=ext/bigdecimal/bigdecimal.c
@@ -839,7 +839,7 @@ class BigDecimal < Numeric
   # is performed; see BigDecimal.mode.
   #
   def round: () -> Integer
-           | (Numeric n, ?Integer mode) -> BigDecimal
+           | (Numeric n, ?(Integer | Symbol) mode) -> BigDecimal
 
   # <!--
   #   rdoc-file=ext/bigdecimal/bigdecimal.c