https://issues.dlang.org/show_bug.cgi?id=23977

          Issue ID: 23977
           Summary: [REG2.102] cannot use getSymbolsByUDA on template
                    struct with alias member
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: phobos
          Assignee: nobody@puremagic.com
          Reporter: johanengelen@weka.io

Testcase:
```
struct S(string str) {
    alias strstr = str;

    int i;
}

struct A {}

import std.traits;
alias B = getSymbolsByUDA!(S!("a"), A);
```

Since dlang 2.102 this gives the error:
Error: first argument is not a symbol
Error: template instance `std.traits.getUDAs!("a", A)` error instantiating
       instantiated from here: `hasUDA!("a", A)`
       instantiated from here: `getSymbolsByUDAImpl!(S!"a", A, "strstr", "i")`
<source>(10):        instantiated from here: `getSymbolsByUDA!(S!"a", A)`

Probably introduced by this PR: https://github.com/dlang/phobos/pull/8631

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