Chuck compiler crash when initializing a vec2

[AndrewAday]

float x;
float y;
@(x y) => vec2 a;

Result:

Assertion failed: (type != NULL), function type_engine_scan2_exp_decl_create, file chuck_scan.cpp, line 2556.
[1]    90576 abort      chuck bug.ck

[gewang]

ah this is due to the missing comma between x and y on line 3; the chuck AST sees x y as a variable declaration... investigating