Fix compiler ppx issue when combining async
and uncurried application
#5856
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Fixes #5854
The compiler ppx for
async
andawait
was propagating annotations of the body. When the body happens to be an uncurried application, the@res.app
annotation was propagated to the code generated by the PPX and produced a type error (E.g. it would generate an uncurried call to the internal functionunsafe_await
).