[refactor] Separate generated builtins and C++ builtins into separate files

src/v8.gyp

Index: src/v8.gyp
diff --git a/src/v8.gyp b/src/v8.gyp
index 12a8327f3e542e1c0d35bc73ca16aebe85aa5fd6..73880e926fdd7951a156efd8c148a91da21a5b21 100644
--- a/src/v8.gyp
+++ b/src/v8.gyp
@@ -471,49 +471,64 @@
         'bootstrapper.cc',
         'bootstrapper.h',
         'builtins/builtins-api.cc',
-        'builtins/builtins-arguments.cc',
+        'builtins/builtins-arguments-gen.cc',
         'builtins/builtins-arguments.h',
         'builtins/builtins-arraybuffer.cc',
         'builtins/builtins-array.cc',
-        'builtins/builtins-async-iterator.cc',
-        'builtins/builtins-async-function.cc',
-        'builtins/builtins-async.cc',
+        'builtins/builtins-array-gen.cc',
+        'builtins/builtins-async-function-gen.cc',
+        'builtins/builtins-async-iterator-gen.cc',
+        'builtins/builtins-async-gen.cc',
         'builtins/builtins-async.h',
         'builtins/builtins-boolean.cc',
+        'builtins/builtins-boolean-gen.cc',
         'builtins/builtins-call.cc',
         'builtins/builtins-callsite.cc',
-        'builtins/builtins-conversion.cc',
-        'builtins/builtins-constructor.cc',
+        'builtins/builtins-constructor-gen.cc',
         'builtins/builtins-constructor.h',
+        'builtins/builtins-conversion-gen.cc',
         'builtins/builtins-dataview.cc',
         'builtins/builtins-date.cc',
+        'builtins/builtins-date-gen.cc',
         'builtins/builtins-debug.cc',
         'builtins/builtins-error.cc',
-        'builtins/builtins-forin.cc',
+        'builtins/builtins-forin-gen.cc',
         'builtins/builtins-forin.h',
         'builtins/builtins-function.cc',
-        'builtins/builtins-generator.cc',
+        'builtins/builtins-function-gen.cc',
+        'builtins/builtins-generator-gen.cc',
         'builtins/builtins-global.cc',
-        'builtins/builtins-handler.cc',
-        'builtins/builtins-ic.cc',
+        'builtins/builtins-global-gen.cc',
+        'builtins/builtins-handler-gen.cc',
+        'builtins/builtins-ic-gen.cc',
         'builtins/builtins-internal.cc',
+        'builtins/builtins-internal-gen.cc',
         'builtins/builtins-interpreter.cc',
         'builtins/builtins-json.cc',
         'builtins/builtins-math.cc',
+        'builtins/builtins-math-gen.cc',
         'builtins/builtins-number.cc',
+        'builtins/builtins-number-gen.cc',
         'builtins/builtins-object.cc',
-        'builtins/builtins-promise.cc',
+        'builtins/builtins-object-gen.cc',
+        'builtins/builtins-promise-gen.cc',
         'builtins/builtins-promise.h',
         'builtins/builtins-proxy.cc',
         'builtins/builtins-reflect.cc',
         'builtins/builtins-regexp.cc',
-        'builtins/builtins-regexp.h',
+        'builtins/builtins-regexp-gen.cc',
+        'builtins/builtins-regexp-gen.h',
         'builtins/builtins-sharedarraybuffer.cc',
+        'builtins/builtins-sharedarraybuffer-gen.cc',
         'builtins/builtins-string.cc',
+        'builtins/builtins-string-gen.cc',
         'builtins/builtins-symbol.cc',
+        'builtins/builtins-symbol-gen.cc',
         'builtins/builtins-typedarray.cc',
+        'builtins/builtins-typedarray-gen.cc',
         'builtins/builtins-utils.h',
-        'builtins/builtins-wasm.cc',
+        'builtins/builtins-utils-gen.h',
+        'builtins/builtins-wasm-gen.cc',
         'builtins/builtins.cc',
         'builtins/builtins.h',
         'cached-powers.cc',