[k2] change support logging level in error_reporting (#1549)

Author: denisichh

runtime-light/stdlib/diagnostics/error-handling-functions.h

@@ -103,27 +103,13 @@ inline int64_t f$error_reporting(Optional<int64_t> new_error_level_opt = {}) noe
     return current_error_level;
   }
 
-  int64_t new_error_level{new_error_level_opt.val()};
-  if (new_error_level != 0 && (new_error_level & ErrorHandlingState::SUPPORTED_ERROR_LEVELS) == 0) {
-    // ignore error_level if it's unsupported
-    return current_error_level;
-  }
   error_handling_st.minimum_log_level = 0;
-  if (new_error_level == 0) {
-    return current_error_level;
-  } else if ((new_error_level & E_ALL) == E_ALL) {
-    error_handling_st.minimum_log_level |= static_cast<int64_t>(E_ALL);
+  if (int64_t new_error_level{new_error_level_opt.val()}; new_error_level == 0) {
     return current_error_level;
   }
 
-  if ((new_error_level & E_NOTICE) == E_NOTICE) {
-    error_handling_st.minimum_log_level |= static_cast<int64_t>(E_NOTICE);
-  }
-  if ((new_error_level & E_WARNING) == E_WARNING) {
-    error_handling_st.minimum_log_level |= static_cast<int64_t>(E_WARNING);
-  }
-  if ((new_error_level & E_ERROR) == E_ERROR) {
-    error_handling_st.minimum_log_level |= static_cast<int64_t>(E_ERROR);
-  }
+  // currently only minimum_log_level == 0 and minimum_log_level == E_ALL are supported,
+  //    because behavior in the runtime/ and runtime-light/ is different. we will fix this in the future.
+  error_handling_st.minimum_log_level = static_cast<int64_t>(E_ALL);
   return current_error_level;
 }