Proper consecutive pair of semicolons get minizimed into one

[igll]

This correct snippet:

for (
    this.length = 1,  
    t = function(e) {  
        return e;
    }(t); 
    ; // No condition (infinite loop)
    ; // No increment. Disappears!!!
)

gets minimizes incorrectly into this:

for(this.length=1,t=function(e){return e}(t);)