Update a bunch of methods with incorrect param types (#305)

Author: DanielGilchrist

lib/activesupport/all/activesupport.rbi

@@ -949,7 +949,7 @@ module DateAndTime::Calculations
   sig { returns(T.self_type) }
   def at_beginning_of_quarter; end
 
-  sig { params(start_day: Integer).returns(T.self_type) }
+  sig { params(start_day: Symbol).returns(T.self_type) }
   def at_beginning_of_week(start_day = T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -961,7 +961,7 @@ module DateAndTime::Calculations
   sig { returns(T.self_type) }
   def at_end_of_quarter; end
 
-  sig { params(start_day: Integer).returns(T.self_type) }
+  sig { params(start_day: Symbol).returns(T.self_type) }
   def at_end_of_week(start_day = T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -976,7 +976,7 @@ module DateAndTime::Calculations
   sig { returns(T.self_type) }
   def beginning_of_quarter; end
 
-  sig { params(start_day: Integer).returns(T.self_type) }
+  sig { params(start_day: Symbol).returns(T.self_type) }
   def beginning_of_week(start_day = T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -988,7 +988,7 @@ module DateAndTime::Calculations
   sig { params(days: Numeric).returns(T.self_type) }
   def days_since(days); end
 
-  sig { params(start_day: Integer).returns(T.self_type) }
+  sig { params(start_day: Symbol).returns(T.self_type) }
   def days_to_week_start(start_day = T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -997,7 +997,7 @@ module DateAndTime::Calculations
   sig { returns(T.self_type) }
   def end_of_quarter; end
 
-  sig { params(start_day: Integer).returns(T.self_type) }
+  sig { params(start_day: Symbol).returns(T.self_type) }
   def end_of_week(start_day = T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -1012,7 +1012,7 @@ module DateAndTime::Calculations
   sig { returns(T.self_type) }
   def last_quarter; end
 
-  sig { params(start_day: Integer, same_time: T::Boolean).returns(T.self_type) }
+  sig { params(start_day: Symbol, same_time: T::Boolean).returns(T.self_type) }
   def last_week(start_day = T.unsafe(nil), same_time: T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -1030,13 +1030,13 @@ module DateAndTime::Calculations
   sig { params(months: Numeric).returns(T.self_type) }
   def months_since(months); end
 
-  sig { params(day_of_week: Integer).returns(T.self_type) }
+  sig { params(day_of_week: Symbol).returns(T.self_type) }
   def next_occurring(day_of_week); end
 
   sig { returns(T.self_type) }
   def next_quarter; end
 
-  sig { params(given_day_in_next_week: Integer, same_time: T::Boolean).returns(T.self_type) }
+  sig { params(given_day_in_next_week: Symbol, same_time: T::Boolean).returns(T.self_type) }
   def next_week(given_day_in_next_week = T.unsafe(nil), same_time: T.unsafe(nil)); end
 
   sig { returns(T.self_type) }
@@ -1051,13 +1051,13 @@ module DateAndTime::Calculations
   sig { returns(T::Boolean) }
   def past?; end
 
-  sig { params(day_of_week: Integer).returns(T.self_type) }
+  sig { params(day_of_week: Symbol).returns(T.self_type) }
   def prev_occurring(day_of_week); end
 
   sig { returns(T.self_type) }
   def prev_quarter; end
 
-  sig { params(start_day: Integer, same_time: T::Boolean).returns(T.self_type) }
+  sig { params(start_day: Symbol, same_time: T::Boolean).returns(T.self_type) }
   def prev_week(start_day = T.unsafe(nil), same_time: T.unsafe(nil)); end
 
   sig { returns(T.self_type) }