[heap] Allow a minimum semi-space size of 512K.

test/cctest/test-strings.cc

Index: test/cctest/test-strings.cc
diff --git a/test/cctest/test-strings.cc b/test/cctest/test-strings.cc
index 92d1eb2c6e2b08d95cd6b4859845fca6ecffc4ed..a46451c3dc2dc15bd37fe12ecf050ced825d228f 100644
--- a/test/cctest/test-strings.cc
+++ b/test/cctest/test-strings.cc
@@ -1301,7 +1301,7 @@ TEST(SliceFromSlice) {
 UNINITIALIZED_TEST(OneByteArrayJoin) {
   v8::Isolate::CreateParams create_params;
   // Set heap limits.
-  create_params.constraints.set_max_semi_space_size(1);
+  create_params.constraints.set_max_semi_space_size_in_kb(1024);
   create_params.constraints.set_max_old_space_size(7);
   create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
   v8::Isolate* isolate = v8::Isolate::New(create_params);