fix body kind issue [squash me]

Author: kavon

lib/Sema/TypeCheckDeclPrimary.cpp

@@ -2817,6 +2817,13 @@ class DeclChecker : public DeclVisitor<DeclChecker> {
         return false;
     }
 
+    // do not skip the body of an actor initializer.
+    // they are checked to determine delegation status
+    if (auto *ctor = dyn_cast<ConstructorDecl>(AFD))
+      if (auto *nom = ctor->getParent()->getSelfNominalTypeDecl())
+        if (nom->isAnyActor())
+          return false;
+
     // Skipping all bodies won't serialize anything, so can skip regardless
     if (getASTContext().TypeCheckerOpts.SkipFunctionBodies ==
         FunctionBodySkipping::All)