Retain default parameters with export
#20167
Merged
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Default parameters need to have the
HasDefault
flag set to work properly, it seems that without this flag they were still selected but only under join compilation.While we're at it, we define a full set of flags that might be exported. Note that Given/Implicit/Erased were already set by
tpd.DefDef
and Inlined doesn't seem to make a difference in practice since the body of the exported inline def is manually constructed and doesn't contain proxies either way.