Don't suppress regular ArgumentError exceptions

lib/grape_entity/entity.rb

@@ -522,7 +522,10 @@ def exec_with_object(options, &block)
       end
     rescue StandardError => e
       # it handles: https://github.com/ruby/ruby/blob/v3_0_0_preview1/NEWS.md#language-changes point 3, Proc
-      raise Grape::Entity::Deprecated.new e.message, 'in ruby 3.0' if e.is_a?(ArgumentError)
+      # accounting for expose :foo, &:bar
+      if e.is_a?(ArgumentError) && block.parameters == [[:req], [:rest]]
+        raise Grape::Entity::Deprecated.new e.message, 'in ruby 3.0'
+      end
 
       raise e
     end

spec/grape_entity/entity_spec.rb

@@ -389,6 +389,10 @@ class SomeObject
             def method_without_args
               'result'
             end
+
+            def raises_argument_error
+              raise ArgumentError, 'something different'
+            end
           end
 
           describe 'with block passed in' do
@@ -402,6 +406,17 @@ def method_without_args
               value = subject.represent(object).value_for(:that_method_without_args)
               expect(value).to eq('result')
             end
+
+            it 'does not suppress ArgumentError' do
+              subject.expose :raises_argument_error do |object|
+                object.raises_argument_error
+              end
+
+              object = SomeObject.new
+              expect do
+                subject.represent(object).value_for(:raises_argument_error)
+              end.to raise_error(ArgumentError, 'something different')
+            end
           end
 
           context 'with block passed in via &' do