The original CI didn't actually run wasi test suite for x86-32 since the `TEST_ON_X86_32=true` isn't written into $GITHUB_ENV. And refine the error output when failed to link import global.
The original CI didn't actually run wasi test suite for x86-32 since the `TEST_ON_X86_32=true` isn't written into $GITHUB_ENV. And refine the error output when failed to link import global.