[Bug 50246] FUJIFILM X-RAW Studio failed at launch : mscorlib.dll - TypeInitializationException member:(null)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50246

--- Comment #4 from Esme Povirk  ---
With varargs pinvoke implemented, I get an invalid IL error with this code:
        IL_058a: ldloc.3
#        [3] valuetype '<CppImplementationDetails>.$ArrayType$$$BY0EAA@_W'*,
        IL_058b: ldloca.s 26
#        [26] valuetype '<CppImplementationDetails>.$ArrayType$$$BY0EAA@_W',
        IL_058d: sub
        IL_058e: ldc.i4.1
        IL_058f: shr

The shr instruction is considered invalid. Based on ECMA-335 and my reading of
Mono's code, the subtraction should result in a native int, which should be
valid to shift by an int32.