Reland "refactor(core): cleanup feature flags for js source inclusion" (#19519)

Relands #19463. This time the `ExtensionFileSourceCode` enum is
preserved, so this effectively just splits feature
`include_js_for_snapshotting` into `exclude_js_sources` and
`runtime_js_sources`, adds a `force_include_js_sources` option on
`extension!()`, and unifies `ext::Init_ops_and_esm()` and
`ext::init_ops()` into `ext::init()`.

1 files changed, 10 insertions, 2 deletions

diff --git a/core/00_primordials.js b/core/00_primordials.js
index 60474e649..998bfc7ab 100644
--- a/core/00_primordials.js
+++ b/core/00_primordials.js
@@ -34,6 +34,14 @@
 "use strict";
 
 (() => {
+  // Provide bootstrap namespace
+  globalThis.__bootstrap ??= {};
+  const key = Symbol.for("00_primordials.js");
+  if (globalThis.__bootstrap[key]) {
+    return;
+  }
+  globalThis.__bootstrap[key] = true;
+
   const primordials = {};
 
   const {
@@ -297,6 +305,7 @@
     ArrayPrototypeJoin,
     ArrayPrototypeMap,
     FunctionPrototypeCall,
+    ObjectAssign,
     ObjectDefineProperty,
     ObjectFreeze,
     ObjectPrototypeIsPrototypeOf,
@@ -610,6 +619,5 @@
   ObjectSetPrototypeOf(primordials, null);
   ObjectFreeze(primordials);
 
-  // Provide bootstrap namespace
-  globalThis.__bootstrap = { primordials };
+  ObjectAssign(globalThis.__bootstrap, { primordials });
 })();