[Issue 23954] New: [REG2.094.2] Deprecated alias to method no longer triggers deprecation

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23954

          Issue ID: 23954
           Summary: [REG2.094.2] Deprecated alias to method no longer
                    triggers deprecation
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: accepts-invalid
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: dlang-bugzilla at thecybershadow.net

////////////////// test.d /////////////////
struct S
{
    void fun() {}
    deprecated alias deprecatedAlias = fun;
}

void main()
{
    S s;
    s.deprecatedAlias();
}
///////////////////////////////////////////

This should cause a deprecation warning, and did so before 2.094.2.

Introduced by https://github.com/dlang/dmd/pull/11940

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