goyacc: double ACTSIZE, NSTATE and TEMPSTATE

CockroachDB has yet again hit the limit of ACTSIZE. Following the
precedent set by CL 33585 and doubling the relevant ACTSIZE, NSTATE and
TEMPSTATE const variables.

cmd/goyacc/yacc.go

@@ -60,9 +60,9 @@ import (
 // the following are adjustable
 // according to memory size
 const (
-	ACTSIZE  = 120000
-	NSTATES  = 8000
-	TEMPSIZE = 8000
+	ACTSIZE  = 240000
+	NSTATES  = 16000
+	TEMPSIZE = 16000
 
 	SYMINC   = 50  // increase for non-term or term
 	RULEINC  = 50  // increase for max rule length prodptr[i]