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Rename main to:

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byval-upgrade.test
RUN: llvm-dis %p/Inputs/byval-upgrade.bc -o - | FileCheck %s

Make sure we upgrade old-stile IntAttribute byval records to a fully typed
version correctly.

CHECK: call void @bar({ i32*, i8 }* byval({ i32*, i8 }) %ptr)
CHECK: invoke void @bar({ i32*, i8 }* byval({ i32*, i8 }) %ptr)