Upstream test test-903.cs : Wrong return code

[sushihangover]

This test broke during the "merges to 3.12.1" but since these merges were done via ForkStalker and currently that only runs the play regressions (which did not fail), these upstream regression creeped in.

A bisect would need to be done from tags play-3.10.0001 to play-3.12.1001 to determine which merge caused this.

/pcompile test-903.cs
test-903.cs(26,16): warning CS0429: Unreachable expression code detected
test-903.cs(32,12): warning CS0429: Unreachable expression code detected
test-903.cs(36,16): warning CS0429: Unreachable expression code detected
test-903.cs(26,7): warning CS0219: The variable `x' is assigned but its value is never used
test-903.cs(21,11): warning CS0649: Field `Program.field' is never assigned to, and will always have its default value `null'
Compilation succeeded - 5 warning(s)
Win81Pro:tests administrator$ ./run test-903.exe
ConversionCalled
ConversionCalled
Exit Code : 2

[sushihangover]

For now (during the 4.x merges) this test will be flagged in the "known-issues-net_4_5" file to allow CI to continue thus checking any additional regressions till we can fix this.