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berce
b676462c1e
When a class is only referenced in a type annotation (Python) or a generic
argument (C#) earlier in the file, that reference mints a source-less stub
with the class name. A later `Parser()` / `new Widget()` in the same file
found the stub in the local lookup, was recognised as an external stub, and
was dropped: it was neither emitted as a local edge nor queued for
cross-file resolution. Since 0.9.62 these constructor edges were missing.
Queue those calls for cross-file resolution as well. That pass already
refuses source-less targets (#3156), so the stub itself still never becomes
a calls hub.
These calls did not bind to anything before, so a rescued call is marked
and only binds with evidence: an import of the target, or for C# the
namespace / `using` scope via CsharpNameResolver. Without that, a file that
imports `com.lib.Client` or uses `System.Collections.Generic` would bind
`new Client()` / `new List<int>()` to an unrelated same-named class.
For C#, `new X()` also drops `case_of` / `defines` targets from its
candidates, the same exclusion the C# type-definition index uses (#3815),
so it cannot bind to an enum member or property named X.
Fixes #3888
(cherry picked from commit e4a9270f45)