message: Clamp IODI layer mode to full for Dalvik
  Summary:
  Other IODI layer modes are incompatible on older versions.
  Clamp the IODI layer model to the full layer mode on Dalvik apps.
diff: @@ -54,7 +54,9 @@ class IODIMetadata {
  // Android builds with min_sdk >= 26 don't need IODI to emit debug info
  explicit IODIMetadata(uint32_t min_sdk,
  IODILayerMode layer_mode = IODILayerMode::kFull)
  - : min_sdk{min_sdk}, layer_mode{layer_mode} {}
  + : min_sdk{min_sdk} {
  + this->layer_mode = min_sdk <= 19 ? IODILayerMode::kFull : layer_mode;
  + }
  // This fills the internal map of stack trace name -> method. This must be
  // called after the last pass and before anything starts to get lowered.
  