[rubygems/rubygems] Refactor Gem::Specification#find_all_by_name

So that it can also be delegated to `Gem::SpecificationRecord`.

https://github.com/rubygems/rubygems/commit/1407807a99

lib/rubygems/dependency.rb

@@ -271,15 +271,7 @@ class Gem::Dependency
   end
 
   def matching_specs(platform_only = false)
-    env_req = Gem.env_requirement(name)
-    matches = Gem::Specification.stubs_for(name).find_all do |spec|
-      requirement.satisfied_by?(spec.version) && env_req.satisfied_by?(spec.version)
-    end.map(&:to_spec)
-
-    if prioritizes_bundler?
-      require_relative "bundler_version_finder"
-      Gem::BundlerVersionFinder.prioritize!(matches)
-    end
+    matches = Gem::Specification.find_all_by_name(name, requirement)
 
     if platform_only
       matches.reject! do |spec|
@@ -297,10 +289,6 @@ class Gem::Dependency
     @requirement.specific?
   end
 
-  def prioritizes_bundler?
-    name == "bundler" && !specific?
-  end
-
   def to_specs
     matches = matching_specs true
 

lib/rubygems/specification.rb

@@ -937,9 +937,19 @@ class Gem::Specification < Gem::BasicSpecification
   # Returns every spec that matches +name+ and optional +requirements+.
 
   def self.find_all_by_name(name, *requirements)
-    requirements = Gem::Requirement.default if requirements.empty?
+    req = Gem::Requirement.create(*requirements)
+    env_req = Gem.env_requirement(name)
 
-    Gem::Dependency.new(name, *requirements).matching_specs
+    matches = stubs_for(name).find_all do |spec|
+      req.satisfied_by?(spec.version) && env_req.satisfied_by?(spec.version)
+    end.map(&:to_spec)
+
+    if name == "bundler" && !req.specific?
+      require_relative "bundler_version_finder"
+      Gem::BundlerVersionFinder.prioritize!(matches)
+    end
+
+    matches
   end
 
   ##