Specialize various #present? implementations

Because `#present?` always resolve to `Object#present?`, it's
an extremely polymorphic method, and inline cache hits are low.

In addition, it requires an extra call to `self.blank?` which is
an overhead.

By specializing `present?` on common types, we avoid both of these
slow-downs:

```

ruby 3.2.2 (2023-03-30 revision e51014f9c0) [arm64-darwin22]
Warming up --------------------------------------
            present?   198.028k i/100ms
        opt_present?   565.521k i/100ms
Calculating -------------------------------------
            present?      2.087M (± 8.8%) i/s -     10.297M in   5.028398s
        opt_present?      5.584M (± 8.6%) i/s -     27.711M in   5.023852s

Comparison:
            present?:  2086621.6 i/s
        opt_present?:  5584373.5 i/s - 2.68x  faster
```

```
ruby 3.2.2 (2023-03-30 revision e51014f9c0) +YJIT [arm64-darwin22]
Warming up --------------------------------------
            present?   819.792k i/100ms
        opt_present?     1.047M i/100ms
Calculating -------------------------------------
            present?     12.192M (± 8.8%) i/s -     60.665M in   5.050622s
        opt_present?     16.540M (± 8.2%) i/s -     82.676M in   5.059029s

Comparison:
            present?: 12192047.5 i/s
        opt_present?: 16539689.6 i/s - 1.36x  faster
```

```ruby

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'benchmark-ips'
  gem 'activesupport'
end

require 'active_support/all'

class Object
  def opt_present?
    respond_to?(:empty?) ? !empty? : !!self
  end
end

class NilClass
  def opt_present?
    false
  end
end

class FalseClass
  def opt_present?
    false
  end
end

class TrueClass
  def opt_present?
    true
  end
end

class Array
  def opt_present?
    !empty?
  end
end

class Hash
  def opt_present?
    !empty?
  end
end

class Symbol
  def opt_present?
    !empty?
  end
end

class String
  def opt_present?
    !blank?
  end
end

class Numeric # :nodoc:
  def opt_present?
    true
  end
end

class Time # :nodoc:
  def opt_present?
    true
  end
end

array = []
hash = {}
time = Time.now

puts RUBY_DESCRIPTION
Benchmark.ips do |x|
  x.report("present?") do
    true.present?
    false.present?
    1.present?
    1.0.present?
    array.present?
    hash.present?
    :foo.present?
    time.present?
  end

  x.report("opt_present?") do
    true.opt_present?
    false.opt_present?
    1.opt_present?
    1.0.opt_present?
    array.opt_present?
    hash.opt_present?
    :foo.opt_present?
    time.opt_present?
  end

  x.compare!(order: :baseline)
end
```

Author: byroot

activesupport/lib/active_support/core_ext/date/blank.rb

@@ -11,4 +11,8 @@ class Date # :nodoc:
   def blank?
     false
   end
+
+  def present?
+    true
+  end
 end

activesupport/lib/active_support/core_ext/date_time/blank.rb

@@ -11,4 +11,8 @@ class DateTime # :nodoc:
   def blank?
     false
   end
+
+  def present?
+    true
+  end
 end

activesupport/lib/active_support/core_ext/object/blank.rb

@@ -16,7 +16,7 @@ class Object
   #
   # @return [true, false]
   def blank?
-    respond_to?(:empty?) ? !!empty? : !self
+    respond_to?(:empty?) ? !!empty? : false
   end
 
   # An object is present if it's not blank.
@@ -56,6 +56,10 @@ class NilClass
   def blank?
     true
   end
+
+  def present? # :nodoc:
+    false
+  end
 end
 
 class FalseClass
@@ -67,6 +71,10 @@ class FalseClass
   def blank?
     true
   end
+
+  def present? # :nodoc:
+    false
+  end
 end
 
 class TrueClass
@@ -78,6 +86,10 @@ class TrueClass
   def blank?
     false
   end
+
+  def present? # :nodoc:
+    true
+  end
 end
 
 class Array
@@ -88,6 +100,10 @@ class Array
   #
   # @return [true, false]
   alias_method :blank?, :empty?
+
+  def present? # :nodoc:
+    !empty?
+  end
 end
 
 class Hash
@@ -98,6 +114,10 @@ class Hash
   #
   # @return [true, false]
   alias_method :blank?, :empty?
+
+  def present? # :nodoc:
+    !empty?
+  end
 end
 
 class Symbol
@@ -106,6 +126,10 @@ class Symbol
   #   :''.blank?     # => true
   #   :symbol.blank? # => false
   alias_method :blank?, :empty?
+
+  def present? # :nodoc:
+    !empty?
+  end
 end
 
 class String
@@ -137,6 +161,10 @@ def blank?
         ENCODED_BLANKS[self.encoding].match?(self)
       end
   end
+
+  def present? # :nodoc:
+    !blank?
+  end
 end
 
 class Numeric # :nodoc:
@@ -149,6 +177,10 @@ class Numeric # :nodoc:
   def blank?
     false
   end
+
+  def present?
+    true
+  end
 end
 
 class Time # :nodoc:
@@ -160,4 +192,8 @@ class Time # :nodoc:
   def blank?
     false
   end
+
+  def present?
+    true
+  end
 end

activesupport/lib/active_support/core_ext/pathname/blank.rb

@@ -13,4 +13,8 @@ class Pathname
   def blank?
     to_s.empty?
   end
+
+  def present? # :nodoc:
+    !to_s.empty?
+  end
 end

activesupport/lib/active_support/time_with_zone.rb

@@ -506,6 +506,10 @@ def blank?
       false
     end
 
+    def present? # :nodoc:
+      true
+    end
+
     def freeze
       # preload instance variables before freezing
       period; utc; time; to_datetime; to_time