Merge pull request #27212 from theblixguy/fix/SR-11478_5.1

[5.1] [PropertyWrapper] Fix a bug with static property wrapper being rejected in a class

Author: DougGregor

lib/Sema/CodeSynthesis.cpp

@@ -1779,8 +1779,8 @@ PropertyWrapperBackingPropertyInfoRequest::evaluate(Evaluator &evaluator,
   pbdPattern->setType(storageType);
   pbdPattern = TypedPattern::createImplicit(ctx, pbdPattern, storageType);
   auto pbd = PatternBindingDecl::createImplicit(
-      ctx, backingVar->getCorrectStaticSpelling(), pbdPattern,
-      /*init*/nullptr, dc, SourceLoc());
+      ctx, var->getCorrectStaticSpelling(), pbdPattern,
+      /*init*/ nullptr, dc, SourceLoc());
   addMemberToContextIfNeeded(pbd, dc, var);
   pbd->setStatic(var->isStatic());
 

test/decl/var/property_wrappers.swift

@@ -1132,6 +1132,25 @@ struct UseNonMutatingProjectedValueSet {
   }
 }
 
+// SR-11478
+
+@propertyWrapper
+struct SR_11478_W<Value> {
+  var wrappedValue: Value
+}
+
+class SR_11478_C1 {
+  @SR_11478_W static var bool1: Bool = true // Ok
+  @SR_11478_W class var bool2: Bool = true // expected-error {{class stored properties not supported in classes; did you mean 'static'?}}
+  @SR_11478_W class final var bool3: Bool = true // expected-error {{class stored properties not supported in classes; did you mean 'static'?}}
+}
+
+final class SR_11478_C2 {
+  @SR_11478_W static var bool1: Bool = true // Ok
+  @SR_11478_W class var bool2: Bool = true // expected-error {{class stored properties not supported in classes; did you mean 'static'?}}
+  @SR_11478_W class final var bool3: Bool = true // expected-error {{class stored properties not supported in classes; did you mean 'static'?}}
+}
+
 // SR-11381
 
 @propertyWrapper