Optimization bug in wasm-opt

[mkustermann]

There seems to be an optimization bug in wasm-opt at 5646ea6

See x.tar.gz:

% tar xvzf x.tar.gz
x.wasm
x.mjs
pkg/dart2wasm/bin/run_wasm.js

% d8 $PWD/pkg/dart2wasm/bin/run_wasm.js  -- $PWD/x.mjs $PWD/x.wasm  
f invoked

now optimize & run again

% out/ReleaseX64/wasm-opt --enable-gc --enable-reference-types --enable-multivalue --enable-exception-handling --enable-nontrapping-float-to-int --enable-sign-ext --enable-bulk-memory --enable-threads --enable-simd '--no-inline=*<noInline>*' --closed-world --traps-never-happen --type-unfinalizing -Os --type-ssa --gufa -Os --type-merging -Os --type-finalizing --minimize-rec-groups -g x.wasm -g -o x.wasm
% d8 $PWD/pkg/dart2wasm/bin/run_wasm.js  -- $PWD/x.mjs $PWD/x.wasm  
% 

=> It no longer prints f invoked.