gc: const debug bool = false

R=ken2
CC=golang-dev
https://golang.org/cl/186232

src/cmd/gc/walk.c

@@ -182,7 +182,7 @@ walkdef(Node *n)
 		t = n->type;
 		if(t != T) {
 			convlit(&e, t);
-			if(!isint[t->etype] && !isfloat[t->etype] && t->etype != TSTRING)
+			if(!isint[t->etype] && !isfloat[t->etype] && t->etype != TSTRING && t->etype != TBOOL)
 				yyerror("invalid constant type %T", t);
 		}
 		n->val = e->val;

test/fixedbugs/bug238.go

@@ -15,5 +15,8 @@ const d chan int = 4    // ERROR "convert|wrong|incompatible"
 const e func() = 5      // ERROR "convert|wrong|incompatible"
 const f struct{} = 6    // ERROR "convert|wrong|incompatible"
 const g interface{} = 7 // ERROR "constant|wrong|incompatible"
+const h bool = false
+const i int = 2
+const j float = 5
 
 func main() { println(a, b, c, d, e, f, g) }