[ASDAlexander77]

Generic class inferred through overloaded and rest constructors

new Array(10, 20, 30), against DefaultLib's Array<T> with three constructors
(data: T[] = [], count: int = 0, ...args: T[]), stayed the unspecialized Array
("Class member 'length' can't be found"). inferClassTypeFromConstructorArguments:

• gave up on any class with more than one constructor;
• skipped rest parameters.

It now tries the constructors that can take that many arguments, in declaration order;
a rest parameter takes T from every argument it collects; the first constructor that
gives every type argument answers. new Array(10, 20, 30) is Array<si32>.

Test: List<T> (array constructor + rest constructor) added to
00generic_class_constructor_inference.ts; it fails without the fix.

CI: default library tests under every memory model

The library was built for gc, rc, none and own, but Test Default Library ran only gc.
Both steps (Windows tests.ps1, Linux tests.sh) now run each model; on Windows each in
its own pwsh, since tests.ps1 reads the library paths once at its start. Every model
runs before a failure fails the step.

Verification

• ctest Release: 6082/6082 passed.
• DefaultLib tests.ps1 locally (with DefaultLib's uncommitted Array<T> constructors and
  the new array_constructors_overload.ts): gc, rc, none, own all pass in all four passes.
• Linux rc/none/own have not run in CI before; this PR is their first run.

Not in this PR

• new Array<int>(10) (and so new Array(10)) has length 1: with T = int the call picks
  (...args: T[]) over (count: int).
• -mm=own: new Array<string>("a", "b") through the rest constructor fails the own checker
  (find/findLast/_with); new Array<string>(["a", "b"]) works.

🤖 Generated with Claude Code