This removes a ton of tests that are no longer relevant with (un)watch
removed (e.g. testing stability/bugs in the watchpoint system itself
which has never been the most stable), and updates others that would
previously rely on watch/unwatch, so that they don't unexpectedly fail.
This fixes a rare crash/CTD in JS.
This adds information about the constraints to a new RAII class so we
can finish all constraints at the end.
Based on changes in BZ 1568397
This was a small mistake when converting from the `hasOwn()` function format (swapped parameters). Fixing this properly makes rest parameters exclude the parameters that are defined (which is the whole point of `...rest`
Both asm.js and syntax parsing can abort and rewind parsing of an inner function.
The bookkeeping to make sure that a class's constructor FunctionBox is only set once is not worth it -- duplicate constructor definitions already throw an early error.
Because of the wacko way we handle toString offsets for class default constructors, those offsets cannot be recovered if we relazify the functions.
Luckily there's no reason to relazify them, their JSScripts are very small: either a single 'retrval' for non-derived, and still fairly small for derived.
This is accomplished in the following ways.
LazyScripts and JSScripts now have 4 offsets:
- Source begin and end for the actual source. This is used for lazy parsing.
- toString begin and end for toString. Some kinds of functions, like async, only have a different begin offset. Class constructors have different offsets for both begin and end.
For syntactically present (i.e. non-default) constructors, the class source span is remembered directly on the LazyScript or JSScript. The toString implementation then splices out the substring directly. For default constructors, a new SRC_CLASS SrcNote type is added. It's binary and has as its arguments the begin and end offsets of the class expression or statement. MakeDefaultConstructor reads the note and overrides the cloned self-hosted function's source object. This is probably the least intrusive way to accomplish this.
