Switch from gcc to clang
Clang requires static variables to have ctors explicitly called
Ignore additional clang warnings
Add additional flags for clang to debug.starsha
Don't try to capture a VLA (Even by reference)
Fix "error: braces around scalar initializer"
Ignore unused private field in Sabot test, since it is actually used / what we're testing around
Ignore tautologocial comparison warning
Update release.starsha flags