debugPrintMarkNeedsLayoutStacks top-level property Null safety
Log the call stacks that mark render objects as needing layout.
For sanity, this only logs the stack traces of cases where an object is added to the list of nodes needing layout. This avoids printing multiple redundant stack traces as a single RenderObject.markNeedsLayout call walks up the tree.
bool debugPrintMarkNeedsLayoutStacks = false;