Fix tests from #25523 under asan/lsan. NFC (#25984)

See #25523

Author: sbc100

.circleci/config.yml

@@ -674,6 +674,7 @@ jobs:
             asan.test_fs_js_api_wasmfs
             asan.test_modularize_instance_pthreads
             asan.test_minimal_runtime_hello_world
+            asan.test_select_blocking
             lsan.test_dylink_dso_needed
             lsan.test_stdio_locking
             lsan.test_dlfcn_basic

test/test_core.py

@@ -9665,6 +9665,7 @@ def test_wasm_global(self, dynlink):
   def test_syscall_intercept(self):
     self.do_core_test('test_syscall_intercept.c')
 
+  @node_pthreads
   def test_select_blocking(self):
     self.do_runf('core/test_select_blocking.c', cflags=['-pthread', '-sPROXY_TO_PTHREAD=1', '-sEXIT_RUNTIME=1'])
 
@@ -9673,6 +9674,8 @@ def test_select_blocking(self):
     'pthread': (['-pthread'],),
   })
   def test_pipe_select(self, args):
+    if args:
+      self.setup_node_pthreads()
     self.do_runf('core/test_pipe_select.c', cflags=args)
 
   @also_without_bigint