Minor docs cleanup

Author: ktoso

include/swift/ABI/Actor.h

@@ -44,7 +44,7 @@ class alignas(Alignment_NonDefaultDistributedActor) NonDefaultDistributedActor :
 public:
   // These constructors do not initialize the actor instance, and the
   // destructor does not destroy the actor instance; you must call
-  // swift_defaultActor_{initialize,destroy} yourself.
+  // swift_nonDefaultDistributedActor_initialize yourself.
   constexpr NonDefaultDistributedActor(const HeapMetadata *metadata)
     : HeapObject(metadata), PrivateData{} {}
 

include/swift/AST/Builtins.def

@@ -774,7 +774,7 @@ BUILTIN_MISC_OPERATION(InitializeDefaultActor, "initializeDefaultActor", "", Spe
 /// Destroy the default-actor instance in a default actor object.
 BUILTIN_MISC_OPERATION(DestroyDefaultActor, "destroyDefaultActor", "", Special)
 
-/// Initialize the default-actor instance in a non-default distributed actor object.
+/// Initialize the extra storage state of a non-default distributed actor object.
 BUILTIN_MISC_OPERATION(InitializeNonDefaultDistributedActor,
                        "initializeNonDefaultDistributedActor", "", Special)
 

include/swift/AST/TypeCheckRequests.h

@@ -1220,7 +1220,7 @@ class GetDistributedActorSystemPropertyRequest :
 
 public:
     // Caching
-    bool isCached() const { return false; }
+    bool isCached() const { return true; }
 };
 
 /// Obtain the constructor of the 'RemoteCallTarget' type.