Linker: Better type comparison for OpTypeArray and OpTypeForwardPointer (#2580)

* Types: Avoid comparing IDs for in Type::IsSameImpl

When linking, we end up with duplicate types for imported and exported
types, that needs to be removed. The current code would reject valid
import/export pairs of symbols due to IDs mismatch, even if the types or
constants behind those ID were the same.

Enabled remaining type_match_test

Fixes #2442