Apply 'misc-override-with-different-visibility' clang-tidy remarks, align .clang-tidy files in the test directories#764

allnes merged 1 commit intolearning-process:masterlearning-process/parallel_programming_course:masterfrom

aobolensk:misc-override-with-different-visibilityaobolensk/parallel_programming_course:misc-override-with-different-visibilityCopy head branch name to clipboard