ASTWalker: getLazyInitializerWalkingBehavior() should not affect property wrappers

Author: slavapestov

lib/AST/ASTWalker.cpp

@@ -194,22 +194,22 @@ class Traversal : public ASTVisitor<Traversal, Expr*, Stmt*,
   }
 
   bool visitPatternBindingDecl(PatternBindingDecl *PBD) {
-    bool isPropertyWrapperBackingProperty = false;
-    if (auto singleVar = PBD->getSingleVar()) {
-      isPropertyWrapperBackingProperty =
-        singleVar->getOriginalWrappedProperty() != nullptr;
-    }
+    auto *singleVar = PBD->getSingleVar();
 
     for (auto idx : range(PBD->getNumPatternEntries())) {
       if (Pattern *Pat = doIt(PBD->getPattern(idx)))
         PBD->setPattern(idx, Pat);
       else
         return true;
 
-      if (!PBD->getInit(idx) || isPropertyWrapperBackingProperty)
+      if (!PBD->getInit(idx))
+        continue;
+
+      if (singleVar && singleVar->getOriginalWrappedProperty())
         continue;
 
-      if (PBD->isInitializerSubsumed(idx) &&
+      if (PBD->isInitializerSubsumed(idx) && singleVar &&
+          singleVar->getAttrs().hasAttribute<LazyAttr>() &&
           Walker.getLazyInitializerWalkingBehavior() !=
               LazyInitializerWalking::InPatternBinding) {
         break;