Adapt use-site to new BoilerplateDescription.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index d0c35acae48ee430bde5ce2c7773c561fc2618a2..f543e8c6e5fd7f3414bd93ad9adcfdefffecd417 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -650,7 +650,7 @@ void BytecodeGenerator::AllocateDeferredConstants(Isolate* isolate) {
     if (object_literal->properties_count() > 0) {
       // If constant properties is an empty fixed array, we've already added it
       // to the constant pool when visiting the object literal.
-      Handle<FixedArray> constant_properties =
+      Handle<BoilerplateDescription> constant_properties =
           object_literal->GetOrBuildConstantProperties(isolate);
 
       builder()->InsertConstantPoolEntryAt(literal.second, constant_properties);