fix Issue 10094 - NRVO with static array return should work
Fix bug 10275 CTFE: allow const casts of struct literals

This was permitted in const-folding, but not in CTFE until now.
Allow NullExp as struct hidden member in struct literals

Since CTFE will create null hidden pointers.
Fix bug 10217 ICE(root.c) with nested struct.init.tupleof in CTFE

CTFE version of bug 9315, almost exactly the same fix.
If a nested struct has no initialized hidden pointer, set it to null
to match the runtime behaviour.
fix Issue 10249 - incorrect mangling for overloaded symbol
do not create a mock ModuleInfo for a symbol that has no associated module
Get rid of #ifs for dylib and fPIC switches
fix Issue 10373 - cannot resolve forward reference
add test case
fix test script for posix
chmod +x on script file, added output to not rebuild every time
try chmod +x again
add -m$(MODEL) to test and simplify
fix test for win64
fix Issue 10375 - private template from imported module hijacks a template type parameter(!)
fix the bit patterns of double.nan and real.nan and real.inf for MS compiled dmd
improve hash speed
Merge pull request #2246 from rainers/fix_port_nan_ms

fix the bit patterns of double.nan and real.nan and real.inf for MS compilation
convert template lookup to hash table
Move Signalling NaN value into Port.