debug: fix compilation error on platforms where debug info is unsupported. Non-tier-1 platforms will now return error.UnsupportedDebugInfo when attempting to print a stack trace, rather than a compile error. debug: Avoid deadlock in the signal handler. stderr_mutex may still be held when we reach the signal handler, grab our own stderr handle to print the error messages and avoid deadlocking. (#7247) debug: Add nosuspend around fix json parsing with unmatched closing tokens (#6865). Also fix swapped parsing errors. fix HashMapputAssumeCapacity and clearRetainingCapacity fs.path.dirname: return Make os.windows.ReadFile allow short reads. This makes it behave like the read() wrapper for unix systems. Reading