Add 'if _heavy then' check in 'testes/locals.lua' to prevent OOM

[Jure Bagić]

Would be nice to add 'if _heavy then...' in 'locals.lua' when testing for
tbc variables high in the stack, this easily requires 32GB+ virtual memory
when stack size is INT_MAX/2 (for 32 bit int's).
Here 'testes/locals.lua:632', the assert at line 661 fails as 'obj' becomes
a string "out of memory", so 'obj[1]' is nil.
(latest commit 4cf498210e6a60637a7abb06d32460ec21efdbdc).

-- Jure

[Roberto Ierusalimschy]

> Would be nice to add 'if _heavy then...' in 'locals.lua' when testing for
> tbc variables high in the stack, this easily requires 32GB+ virtual memory
> when stack size is INT_MAX/2 (for 32 bit int's).

I am not following you here. For 32 bit int's the stack size is not
INT_MAX/2, it is 1000000.

-- Roberto

[Jure Bagić]

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I seem to have removed the conditional define here for testing purposes and
forgot to put it back, so that resulted in always having 'INT_MAX/2u' as
stack size, my apologies. Also small correction on my part, adding
'if not _soft then...', and not the 'if _heavy then...', but not that it
matters anymore.

-- Jure