tools,doc: use V8::DisposePlatform

V8::ShutdownPlatform has been deprecated and does the same.

PR-URL: https://github.com/nodejs/node/pull/41610
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

doc/api/embedding.md

@@ -61,7 +61,7 @@ int main(int argc, char** argv) {
   int ret = RunNodeInstance(platform.get(), args, exec_args);
 
   V8::Dispose();
-  V8::ShutdownPlatform();
+  V8::DisposePlatform();
   return ret;
 }
 ```

test/cctest/node_test_fixture.h

@@ -98,7 +98,7 @@ class NodeZeroIsolateTestFixture : public ::testing::Test {
     while (uv_loop_alive(&current_loop)) {
       uv_run(&current_loop, UV_RUN_ONCE);
     }
-    v8::V8::ShutdownPlatform();
+    v8::V8::DisposePlatform();
     CHECK_EQ(0, uv_loop_close(&current_loop));
   }
 

test/embedding/embedtest.cc

@@ -40,7 +40,7 @@ int main(int argc, char** argv) {
   int ret = RunNodeInstance(platform.get(), args, exec_args);
 
   V8::Dispose();
-  V8::ShutdownPlatform();
+  V8::DisposePlatform();
   return ret;
 }
 

tools/code_cache/mkcodecache.cc

@@ -68,6 +68,6 @@ int main(int argc, char* argv[]) {
   }
   isolate->Dispose();
 
-  v8::V8::ShutdownPlatform();
+  v8::V8::DisposePlatform();
   return 0;
 }