7086586: Inference producing null type argument
Summary: Inference should fail in 15.12.2.7 when inference variables with 'nulltype' upper bounds are found
Reviewed-by: dlsmith
^build/
^dist/
/nbproject/private/
^src/share/tools/hsdis/build/
^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/
^src/share/tools/IdealGraphVisualizer/build/
^src/share/tools/IdealGraphVisualizer/dist/
^.hgtip