Added full deferred loading semantic to precompiled/--noopt/eager-loading code

runtime/lib/object.cc

Index: runtime/lib/object.cc
diff --git a/runtime/lib/object.cc b/runtime/lib/object.cc
index 2c43d96e58db30af0e22668af6838a940ae0a122..d8693a1bb0a75002f0e84de7b5db5d7d9fd40974 100644
--- a/runtime/lib/object.cc
+++ b/runtime/lib/object.cc
@@ -378,6 +378,13 @@ DEFINE_NATIVE_ENTRY(LibraryPrefix_loadError, 1) {
 }
 
 
+DEFINE_NATIVE_ENTRY(LibraryPrefix_isLoaded, 1) {
+  const LibraryPrefix& prefix =
+      LibraryPrefix::CheckedHandle(arguments->NativeArgAt(0));
+  return Bool::Get(prefix.is_loaded()).raw();
+}
+
+
 DEFINE_NATIVE_ENTRY(Internal_inquireIs64Bit, 0) {
 #if defined(ARCH_IS_64_BIT)
   return Bool::True().raw();