Changelog
451c754 extract: process interface wrapper method with variadic parameter
84ad467 fix #1056, extract: replace the code for get package name.
9926767 interp: allow redeclaration of imports
ec5392d interp: do not skip use of tmp frame in multi-assign
aa2621f interp: fix a panic when embedding an error interface
2b1d6f0 interp: fix append on variadic recursive struct
d92051d interp: treat var declaration within a block as a define statement