Make GenericPath.parentPath pure.
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@ -478,7 +478,7 @@ struct GenericPath(F) {
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GenericPath parentPath()
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const @nogc {
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auto b = Format.getBackNode(m_path);
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static const Exception e = new Exception("Path has no parent path");
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static immutable Exception e = new Exception("Path has no parent path");
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if (b.length >= m_path.length) throw e;
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return GenericPath.fromTrustedString(m_path[0 .. $ - b.length]);
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}
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