Use append_to_html rather than function to_html: STRING

this is mainly to avoid creating useless intermediary strings.

draft/application/cms/src/modules/node/node_add_cms_execution.e

@@ -82,7 +82,7 @@ feature -- Execution
 								end
 								fd.apply_to_associated_form
 							end
-							b.append (f.to_html (theme))
+							f.append_to_html (theme, b)
 						end
 					else
 						set_title ("Access denied")

draft/application/cms/src/modules/node/node_edit_cms_execution.e

@@ -87,7 +87,7 @@ feature -- Execution
 								end
 								fd.apply_to_associated_form
 							end
-							b.append (f.to_html (theme))
+							f.append_to_html (theme, b)
 						end
 					else
 						b.append ("<h1>Access denied</h1>")

draft/application/cms/src/modules/user/user_cms_execution.e

@@ -112,7 +112,7 @@ feature -- Execution
 					end
 					fd.apply_to_associated_form
 				end
-				b.append (f.to_html (theme))
+				f.append_to_html (theme, b)
 				set_main_content (b)
 			end
 		end

draft/application/cms/src/modules/user/user_edit_cms_execution.e

@@ -105,7 +105,7 @@ feature -- Execution
 						end
 						fd.apply_to_associated_form
 					end
-					b.append (f.to_html (theme))
+					f.append_to_html (theme, b)
 				end
 			end
 			set_main_content (b)

draft/application/cms/src/modules/user/user_new_password_cms_execution.e

@@ -34,7 +34,7 @@ feature -- Execution
 					if attached u.email as l_email then
 						f := new_password_form (url (request.path_info, Void), "new-password")
 						b.append ("Password reset instructions will be mailed to <em>" + l_email + "</em>. You must " +  link ("log out", "/user/logout", Void)  + " to use the password reset link in the e-mail.")
-						b.append (f.to_html (theme))
+						f.append_to_html (theme, b)
 					else
 						b.append ("Your account does not have any email address set!")
 						set_redirection (url ("/user/"+ u.id.out +"/edit", Void))
@@ -84,7 +84,7 @@ feature -- Execution
 						end
 						fd.apply_to_associated_form
 					end
-					b.append (f.to_html (theme))
+					f.append_to_html (theme, b)
 				end
 			end
 			set_main_content (b)

draft/application/cms/src/modules/user/user_register_cms_execution.e

@@ -103,7 +103,7 @@ feature -- Execution
 						end
 						fd.apply_to_associated_form
 					end
-					b.append (f.to_html (theme))
+					f.append_to_html (theme, b)
 				end
 			end
 			set_main_content (b)