tree d0c6eab13c95ac7a9c6148b9b63dd6df60d3f238
parent 5276973224066e591b0f1a79c3b091d395848ac4
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1614695740 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1614695740 -0300

Stack check in warning function for tests

The warning function using for tests need to check the stack before
pushing anything. (Warning functions are not expected to access a
Lua state, therefore they have no preallocated stack space.)