Merge pull request #40148 from Shopify/mysql2-quote-exception

Translate Mysql2 errors in Mysql2Adapter#quote_string

activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb

@@ -101,6 +101,8 @@ def error_number(exception)
 
       def quote_string(string)
         @connection.escape(string)
+      rescue Mysql2::Error => error
+        raise translate_exception(error, message: error.message, sql: "<escape>", binds: [])
       end
 
       #--

activerecord/test/cases/adapters/mysql2/connection_test.rb

@@ -67,7 +67,7 @@ def test_execute_after_disconnect
   def test_quote_after_disconnect
     @connection.disconnect!
 
-    assert_raise(Mysql2::Error) do
+    assert_raise(ActiveRecord::StatementInvalid) do
       @connection.quote("string")
     end
   end