Associations do not call .to_proc on Hash

  Fixes rails#25010

Author: tlrdstd

activerecord/CHANGELOG.md

@@ -1,3 +1,9 @@
+* Support Ruby 2.3 by not unexpectedly calling `.to_proc` on Hash objects
+
+    Fixes #25010
+
+    *tlrdstd*
+
 ## Rails 3.2.22 (Jun 16, 2015) ##
 
 * No changes.

activerecord/lib/active_record/associations/association.rb

@@ -158,7 +158,7 @@ def load_target
       end
 
       def interpolate(sql, record = nil)
-        if sql.respond_to?(:to_proc)
+        if sql.respond_to?(:to_proc) && !sql.is_a?(Hash)
           owner.send(:instance_exec, record, &sql)
         else
           sql

activerecord/lib/active_record/associations/join_dependency/join_association.rb

@@ -146,7 +146,7 @@ def conditions
         private
 
         def interpolate(conditions)
-          if conditions.respond_to?(:to_proc)
+          if conditions.respond_to?(:to_proc) && !conditions.is_a?(Hash)
             instance_eval(&conditions)
           else
             conditions

activerecord/lib/active_record/associations/preloader/association.rb

@@ -113,7 +113,7 @@ def build_scope
         end
 
         def process_conditions(conditions)
-          if conditions.respond_to?(:to_proc)
+          if conditions.respond_to?(:to_proc) && !conditions.is_a?(Hash)
             conditions = klass.send(:instance_eval, &conditions)
           end