import foo {.all.} reboot (#17706)

tests/ic/mimports.nim

@@ -0,0 +1,9 @@
+from mimportsb {.all.} import fnb1, hfnb3
+
+proc fn1*(): int = 1
+proc fn2*(): int = 2
+proc hfn3(): int = 3
+proc hfn4(): int = 4
+proc hfn5(): int = 5
+
+export mimportsb.fnb2, hfnb3