As of 0.6.0, new Map() cannot satisfy existing generic constraints

[amitdahan]

Related #41, and specifically - this bug was introduced in #53.

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Previously (when new Map() returned a Map<any, any>) - this would have worked:

function expectsBooleanMap(map: Map<string, boolean>) {}
expectsBooleanMap(new Map());

But with 0.6.0 it no longer works!

error TS2345: Argument of type 'Map<unknown, unknown>' is not assignable to parameter of type 'Map<string, boolean>'.

This also reproduces with usages such as:

const map: Map<string, boolean> = new Map();
const map = new Map() satisfies Map<string, boolean>;

[jaens]

Can confirm, after upgrade most new Map()s return a type error now, before they were type inferred properly.

(needed to revert to previous version)