Rude edits not detected when changing (primary) constructor initializer

[tmat]

See disabled tests.

class C { C() : base(stackalloc int[1]) {} C(Span<int> span) {} }

class C { C() : base(stackalloc int[2]) {} C(Span<int> span) {} }

class C { C(int x) : this(() => x) {} C(Func<int> f) {} }

class C { C(int x) : this(() => 1) {} C(Func<int> f) {} }

etc.