[typeDesc-stmt] Generate new typedesc instruction for record and tuple when type descriptor resolving

[rdulmina]

Purpose

In this PR, I have generated a new 'typedesc' (type descriptor) only once for the tuple and record.
For example:

type Foo record {||};
public function main() {
    Foo f = {};
    record {|int a;|} r = {a: 1};
}

We have desugared the above program as follows:

type Foo record {||};
typedesc<Foo> $typedesc$Foo = Foo;
public function main() {
    Foo f = {};
    typedesc<record {| int a; |}> $typedesc$$anonType$_0 = record {| int a; |}
    record {|int a;|} r = {a: 1};
}

We then use the generated 'typedesc' when creating a map value using that type.

Fixes #38844, #41946, #43311