[release-branch.go1.11] runtime: add test for go function argument scanning
    
    Derived	from Naoki's reproducer.
    
    Update #29565
    
    Change-Id: I1cbd33b38a2f74905dbc22c5ecbad4a87a24bdd1
    Reviewed-on: https://go-review.googlesource.com/c/156122
    Run-TryBot: Keith Randall <khr@golang.org>
    Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
    TryBot-Result: Gobot Gobot <gobot@golang.org>
    (cherry picked from commit af4320350b3a156de0d1cfa9845ab1e48dcbfefa)
    Reviewed-on: https://go-review.googlesource.com/c/156358
    Run-TryBot: Ian Lance Taylor <iant@golang.org>
    Reviewed-by: Ian Lance Taylor <iant@golang.org>