fix Issue 10079 - Builit-in generated opAssign should be pure nothrow @safe on default
Remove trailing spaces
CTFE: Pointer cast wrong-code bug

This was causing the test suite to fail on Win32 when using
CTFE to do const folding.
Merge pull request #2257 from donc/ctfePointerPaint

CTFE: Pointer cast wrong-code bug
Merge pull request #2036 from 9rnsr/fix10079

Issue 10079 - Builit-in generated opAssign should be pure nothrow @safe on default