tests: add test with global const matrix initialization, fails now
strcpy in debug clang actually checks for string overlap; so fix usage
(wtf is that code?!)
Fix hlsl library functions not being emitted if they are only used for global initializers
Fix initialization of some globals, e.g. having a const static float3x3 foo = float3x3(...) was
not emitting proper initializer.
xcode: cleanup project settings