Empty of -e option for MSVC

[dlangBugzillaToGithub]

Daewon Lee reported this on 2017-08-10T08:03:15Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=17737

Description

The -e is thought to be transformed to /E or /EP in MSVC, but it seems the command option is not processed properly.(https://github.com/dlang/dmd/blob/master/src/vcbuild/msvc-dmc.d)

Is it deliberately omitted? or should be added as follows?


<code>
case "-e": // "show results of preprocessor"
    newArgs ~= "/E";
    break;
</code>