[Webkit-unassigned] [Bug 189902] New: offlineasm: fix macro scoping

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189902

            Bug ID: 189902
           Summary: offlineasm: fix macro scoping
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tzagallo at apple.com

In the code below, the reference to `f` in `g`, which should refer to the outer macro definition will instead refer to the f argument of the anonymous macro passed to `g`. That leads to this code failing to compile (f expected 0 args but got 1).

```
macro f(x)
    move x, t0
end

macro g(fn)
    fn(macro () f(42) end)
end

g(macro(f) f() end)
```

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