For non-TLA modules, cache the compiled Bytecode::Executable on the
SourceTextModule so we only compile once.
For TLA modules, pre-create the SharedFunctionInstanceData for the
async wrapper function at construction time. The wrapper function's
first invocation will compile it to bytecode and then automatically
drop the AST via clear_compile_inputs().
Extract the data needed by initialize_environment() from the AST at
construction time, following the pattern already used by Script for
global declaration instantiation.
This pre-computes var declared names, lexical bindings (with function
indices), functions to initialize (with SharedFunctionInstanceData),
and the default export binding name.
This has quite a lot of fall out. But the majority of it is just type or
UDL substitution, where the changes just fall through to other function
calls.
By changing property key storage to UTF-16, the main affected areas are:
* NativeFunction names must now be UTF-16
* Bytecode identifiers must now be UTF-16
* Module/binding names must now be UTF-16
This reverts commit c14173f651. We
should only annotate the minimum number of symbols that external
consumers actually use, so I am starting from scratch to do that
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:
* JS::NonnullGCPtr -> GC::Ref
* JS::GCPtr -> GC::Ptr
* JS::HeapFunction -> GC::Function
* JS::CellImpl -> GC::Cell
* JS::Handle -> GC::Root
