new gensym handling (#11985)

* new .gensym implementation
* make astspec test green again
* introduce a --useVersion switch to group compatibility switches
* fixes #10180
* fixes #11494 
* fixes #11483
* object constructor fields and named parameters are also not gensym'ed
* disabled broken package
This commit is contained in:
Andreas Rumpf 2019-08-23 16:15:02 +02:00 • committed by GitHub
commit b07694cd90
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18 changed files with 346 additions and 114 deletions

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@ -0,0 +1,13 @@
discard """
errormsg: "redefinition of 'a`gensym"
line: 9
"""
# bug #10180
proc f() =
template t() =
var a = 1
var a = 2
echo a
t()
f()