- use `double` arithmetic where necessary to match the spec
- use `volatile` to ensure correct order of evaluation
and prevent FMA code generation
- reject some border cases.
- avoid undefined behavior in `double` -> `int64_t` conversions
- improved tests/test_builtin.js `assert` function to compare
values more reliably.
- added some tests in `test_date()`
- disable some of these tests on win32 and cygwin targets
- split test_bigfloat.js from test_bignum.js
- make test_date() compatible with node
- document Date constructor string argument format:
should add test cases for invalid strings
- test_argument_scope(): only test this syntax error in strict mode:
`var f = function(a = eval("var arguments")) {};`
- Use uint32_t arithmetics and Standard conformant conversion to
avoid UB in js_math_imul.
- add builtin tests
- use specific object directories for SAN targets
