Add isAnonymous to JSON metadata.

CHANGELOG.md

@@ -10,7 +10,7 @@ Bug fixes
 * Complex indexing/dotting chains now parse correctly, for example: `a[b][c[d]].e`
 * `map` and `filter` for arrays are marked `pure`. Warnings are added to the documentation of pure array methods that take `this` closures.
 * Syntax such as `foo.bar::baz` no longer panics, but returns a proper parse error.
-* `x += y` where `x` and `y` are `char` now works correctly.
+* Some op-assignment statements, such as `x += y` where `x` and `y` are `char`, now work correctly instead of failing silently.
 * Expressions such as `!inside` now parses correctly instead of as `!in` followed by `side`.
 * Custom syntax starting with symbols now works correctly and no longer raises a parse error.
 * Comparing different custom types now works correctly when the appropriate comparison operators are registered.
@@ -32,6 +32,7 @@ Enhancements
 * Loading a module via `import` now gives the module access to the current scope, including variables and constants defined inside.
 * Some very simple operator calls (e.g. integer add) are short-circuited to avoid the overhead of a function call, resulting in a small speed improvement.
 * The tokenizer now uses table-driven keyword recognizers generated by GNU gperf. At least _theoretically_ it should be faster...
+* The field `isAnonymous` is added to JSON functions metadata.
 
 
 Version 1.12.0