Flow v0.149.0

New Features:

• Added autocomplete for member expressions that use bracket notation

Notable bug fixes:

• Improved typechecking for expressions like obj[Symbol.iterator]. This is now correctly typed as the object type's @@iterator property.

Misc:

• Removed esproposal.class_instance_fields, esproposal.class_static_fields, esproposal.decorators, esproposal.export_star_as, esproposal.nullish_coalescing and esproposal.optional_chaining flowconfig options which have been deprecated since v0.135.