Some tweaks made while working on v8 bindings.

c++/src/capnp/capability.c++

@@ -585,7 +585,7 @@ public:
 
   VoidPromiseAndPipeline call(uint64_t interfaceId, uint16_t methodId,
                               kj::Own<CallContextHook>&& context) override {
-    return VoidPromiseAndPipeline { kj::cp(exception), kj::heap<BrokenPipeline>(exception) };
+    return VoidPromiseAndPipeline { kj::cp(exception), kj::refcounted<BrokenPipeline>(exception) };
   }
 
   kj::Maybe<ClientHook&> getResolved() {

c++/src/capnp/compiler/compiler.c++

@@ -488,6 +488,16 @@ kj::Maybe<Compiler::Node::Content&> Compiler::Node::getContent(Content::State mi
       auto builder = schemaNode.get();
       builder.setId(id);
       builder.setDisplayName(displayName);
+      // TODO(cleanup):  Would be better if we could remember the prefix length from before we
+      //   added this decl's name to the end.
+      KJ_IF_MAYBE(lastDot, displayName.findLast('.')) {
+        builder.setDisplayNamePrefixLength(*lastDot + 1);
+      }
+      KJ_IF_MAYBE(lastColon, displayName.findLast(':')) {
+        if (*lastColon > builder.getDisplayNamePrefixLength()) {
+          builder.setDisplayNamePrefixLength(*lastColon + 1);
+        }
+      }
       KJ_IF_MAYBE(p, parent) {
         builder.setScopeId(p->id);
       }

c++/src/capnp/dynamic.h

@@ -117,6 +117,8 @@ public:
   DynamicEnum() = default;
   inline DynamicEnum(EnumSchema::Enumerant enumerant)
       : schema(enumerant.getContainingEnum()), value(enumerant.getOrdinal()) {}
+  inline DynamicEnum(EnumSchema schema, uint16_t value)
+      : schema(schema), value(value) {}
 
   template <typename T, typename = kj::EnableIf<kind<T>() == Kind::ENUM>>
   inline DynamicEnum(T&& value): DynamicEnum(toDynamic(value)) {}
@@ -139,9 +141,6 @@ private:
   EnumSchema schema;
   uint16_t value;
 
-  inline DynamicEnum(EnumSchema schema, uint16_t value)
-      : schema(schema), value(value) {}
-
   uint16_t asImpl(uint64_t requestedTypeId) const;
 
   friend struct DynamicStruct;

c++/src/kj/exception.h

@@ -125,6 +125,7 @@ private:
   friend class ExceptionImpl;
 };
 
+// TODO(soon):  These should return StringPtr.
 ArrayPtr<const char> KJ_STRINGIFY(Exception::Nature nature);
 ArrayPtr<const char> KJ_STRINGIFY(Exception::Durability durability);
 String KJ_STRINGIFY(const Exception& e);