embind - Remove node exception handling flag for node 17+.

Fixes: #21405

Author: brendandahl

tools/link.py

@@ -1926,7 +1926,7 @@ def run_embind_gen(wasm_target, js_syms, extra_settings):
   if settings.MEMORY64:
     node_args += shared.node_memory64_flags()
   if settings.WASM_EXCEPTIONS:
-    node_args += shared.node_exception_flags()
+    node_args += shared.node_exception_flags(config.NODE_JS)
   # Run the generated JS file with the proper flags to generate the TypeScript bindings.
   out = shared.run_js_tool(outfile_js, [], node_args, stdout=PIPE)
   settings.restore(original_settings)

tools/shared.py

@@ -397,8 +397,12 @@ def node_memory64_flags():
   return ['--experimental-wasm-memory64']
 
 
-def node_exception_flags():
-  return ['--experimental-wasm-eh']
+def node_exception_flags(nodejs):
+  node_version = get_node_version(nodejs)
+  # Exception handling was enabled by default in node v17.
+  if node_version and node_version < (17, 0, 0):
+    return ['--experimental-wasm-eh']
+  return []
 
 
 def node_pthread_flags(nodejs):