Re-introduce duplicate symbol check#1891

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rvagg wants to merge 2 commits intomasterfrom

rvagg/reintroduce-duplicate-symbol-check

Commits on Oct 3, 2019

build,test: add duplicate symbol test

Gabriel Schulhof
authored and
rvagg
committed
test: use Nan in duplicate_symbols

Gabriel Schulhof
authored and
rvagg
committed