MB-41231. cache compiled like when it is static

Change-Id: I8bcd40a6db83916f37308979628dac154a0ab40c
Reviewed-on: http://review.couchbase.org/c/query/+/133336
Reviewed-by: Bingjie Miao <bingjie.miao@couchbase.com>
Tested-by: Sitaram Vemulapalli <sitaram.vemulapalli@couchbase.com>
Reviewed-on: http://review.couchbase.org/c/query/+/135274
Well-Formed: Build Bot <build@couchbase.com>

expression/comp_like.go

@@ -82,6 +82,9 @@ func (this *Like) Apply(context Context, first, second value.Value) (value.Value
 		if err != nil {
 			return nil, err
 		}
+		if this.operands[1].Static() != nil {
+			this.re = re
+		}
 	}
 
 	return value.NewValue(re.MatchString(f)), nil