IC: added converter test case (#17688)

* IC: added converter test case

* IC: make converter example work

compiler/importer.nim

@@ -163,14 +163,17 @@ proc addImport(c: PContext; im: sink ImportedModule) =
   c.imports.add im
 
 template addUnnamedIt(c: PContext, fromMod: PSym; filter: untyped) {.dirty.} =
-  for it in c.graph.ifaces[fromMod.position].converters:
+  for it in mitems c.graph.ifaces[fromMod.position].converters:
     if filter:
+      loadPackedSym(c.graph, it)
       addConverter(c, it)
-  for it in c.graph.ifaces[fromMod.position].patterns:
+  for it in mitems c.graph.ifaces[fromMod.position].patterns:
     if filter:
+      loadPackedSym(c.graph, it)
       addPattern(c, it)
-  for it in c.graph.ifaces[fromMod.position].pureEnums:
+  for it in mitems c.graph.ifaces[fromMod.position].pureEnums:
     if filter:
+      loadPackedSym(c.graph, it)
       importPureEnumFields(c, it.sym, it.sym.typ)
 
 proc importAllSymbolsExcept(c: PContext, fromMod: PSym, exceptSet: IntSet) =

compiler/modulegraphs.nim

@@ -326,6 +326,10 @@ proc loadCompilerProc*(g: ModuleGraph; name: string): PSym =
         strTableAdd(g.compilerprocs, result)
       return result
 
+proc loadPackedSym*(g: ModuleGraph; s: var LazySym) =
+  if s.sym == nil:
+    s.sym = loadSymFromId(g.config, g.cache, g.packed, s.id.module, s.id.packed)
+
 proc `$`*(u: SigHash): string =
   toBase64a(cast[cstring](unsafeAddr u), sizeof(u))
 

tests/ic/mdefconverter.nim

@@ -0,0 +1,2 @@
+
+converter toBool*(x: int): bool = x != 0

tests/ic/tconverter.nim

@@ -0,0 +1,18 @@
+discard """
+  output: "yes"
+"""
+
+import mdefconverter
+
+echo "yes"
+
+#!EDIT!#
+
+discard """
+  output: "converted int to bool"
+"""
+
+import mdefconverter
+
+if 4:
+  echo "converted int to bool"