Updated builtin.rbs's interfaces

core/array.rbs

@@ -3920,14 +3920,6 @@ class Array[unchecked out Elem] < Object
   def initialize_copy: (self other_ary) -> void
 end
 
-interface _ToA[T]
-  def to_a: () -> Array[T]
-end
-
-interface _ToAry[T]
-  def to_ary: () -> ::Array[T]
-end
-
 interface _Rand
   def rand: (::Integer max) -> ::Integer
 end

core/builtin.rbs

@@ -1,3 +1,15 @@
+interface _ToC
+  def to_c: () -> Complex
+end
+
+interface _ToR
+  def to_r: () -> Rational
+end
+
+interface _ToF
+  def to_f: () -> Float
+end
+
 interface _ToI
   def to_i: () -> Integer
 end
@@ -6,26 +18,34 @@ interface _ToInt
   def to_int: () -> Integer
 end
 
-interface _ToR
-  def to_r: () -> Rational
-end
-
 interface _ToS
   def to_s: () -> String
 end
 
-interface _ToF
-  def to_f: () -> Float
-end
-
 interface _ToStr
   def to_str: () -> String
 end
 
+interface _ToSym
+  def to_sym: () -> Symbol
+end
+
+interface _ToH[K, V]
+  def to_h: () -> Hash[K, V]
+end
+
 interface _ToHash[K, V]
   def to_hash: () -> Hash[K, V]
 end
 
+interface _ToA[T]
+  def to_a: () -> Array[T]
+end
+
+interface _ToAry[T]
+  def to_ary: () -> Array[T]
+end
+
 interface _ToProc
   def to_proc: () -> Proc
 end