[builtins] Move more files into v8_builtins_generators source set

src/full-codegen/x64/full-codegen-x64.cc

Index: src/full-codegen/x64/full-codegen-x64.cc
diff --git a/src/full-codegen/x64/full-codegen-x64.cc b/src/full-codegen/x64/full-codegen-x64.cc
index cb3d994f011a2447ffb51a44760cdc23737a3b83..18503efbe8ef78983fae21723b1774a2745da4b9 100644
--- a/src/full-codegen/x64/full-codegen-x64.cc
+++ b/src/full-codegen/x64/full-codegen-x64.cc
@@ -190,8 +190,7 @@ void FullCodeGenerator::Generate() {
       if (info->scope()->new_target_var() != nullptr) {
         __ Push(rdx);  // Preserve new target.
       }
-      if (slots <=
-          ConstructorBuiltinsAssembler::MaximumFunctionContextSlots()) {
+      if (slots <= ConstructorBuiltins::MaximumFunctionContextSlots()) {
         Callable callable = CodeFactory::FastNewFunctionContext(
             isolate(), info->scope()->scope_type());
         __ Set(FastNewFunctionContextDescriptor::SlotsRegister(), slots);