deps: always define V8_EXPORT_PRIVATE as no-op

dllexport introduces issues when compiling with MSVC.

PR-URL: nodejs#47251
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
PR-URL: nodejs#49639
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

common.gypi

@@ -36,7 +36,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.0',
+    'v8_embedder_string': '-node.1',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/src/base/macros.h

@@ -389,9 +389,9 @@ bool is_inbounds(float_t v) {
 // Setup for Windows shared library export.
 #define V8_EXPORT_ENUM
 #ifdef BUILDING_V8_SHARED
-#define V8_EXPORT_PRIVATE __declspec(dllexport)
+#define V8_EXPORT_PRIVATE
 #elif USING_V8_SHARED
-#define V8_EXPORT_PRIVATE __declspec(dllimport)
+#define V8_EXPORT_PRIVATE
 #else
 #define V8_EXPORT_PRIVATE
 #endif  // BUILDING_V8_SHARED
@@ -401,8 +401,8 @@ bool is_inbounds(float_t v) {
 // Setup for Linux shared library export.
 #if V8_HAS_ATTRIBUTE_VISIBILITY
 #ifdef BUILDING_V8_SHARED
-#define V8_EXPORT_PRIVATE __attribute__((visibility("default")))
-#define V8_EXPORT_ENUM V8_EXPORT_PRIVATE
+#define V8_EXPORT_PRIVATE
+#define V8_EXPORT_ENUM
 #else
 #define V8_EXPORT_PRIVATE
 #define V8_EXPORT_ENUM