JSC_REDECLARED_VARIABLE_ERROR: Illegal redeclared variable

[thheller]

let types;
[x, ...types] = [1,2,3];

Compiling this piece of code yields the following error in the Compiler but executes fine in Chrome.

JSC_REDECLARED_VARIABLE_ERROR: Illegal redeclared variable: types at line 3 character 7
[x, ...types] = [1,2,3];

Reproduced with the closure-compiler.appspot.com web compiler and the v20180422 release.

Seen in the jsonld npm package.

[brad4d]

For some reason REST is included in the list of DECLARATION_PARENTS in Reference.java

[brad4d]

I'm sending a fix for internal review.
Thanks for the report @thheller .