"Create method" quick fix doesn't understand about named-arguments-anywhere.

[stereotype441]

This code:

class C {}

f(C c) {
  c.m(arg1: true, 0, arg3: 'string'); // (1)
}

has a compile-time error at (1): "The method 'm' isn't defined for the type 'C'."

Note that the call site has a named argument followed by a positional argument followed by a named argument. This has been allowed since 2.17 (it's the "named-argument-anywhere" feature).

There's a quick fix available: "Create method 'm'." But triggering it gives incorrect results:

class C {
  void m({required bool arg1, int i, required String arg3}) {}
}

f(C c) {
  c.m(arg1: true, 0, arg3: 'string');
}

Note that in the generated method, i is a named argument; it should be a positional argument, i.e.:

class C {
  void m(int i, {required bool arg1, required String arg3}) {}
}

f(C c) {
  c.m(arg1: true, 0, arg3: 'string');
}