runtime: fix incorrectly commented out code in heapdump.c

    
    Reviewed-on: https://go-review.googlesource.com/25490

From-SVN: r239144

gcc/go/gofrontend/MERGE

-235dffb0de1e99d6f521f052067f0e936bf63baa
+ae44ca35b0b1c2ab925cadbcd7d47b334be5a318
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.

libgo/runtime/heapdump.c

@@ -763,14 +763,16 @@ dumpefacetypes(void *obj __attribute__ ((unused)), uintptr size, const Type *typ
 		//playgcprog(0, (uintptr*)type->gc + 1, dumpeface_callback, obj);
 		break;
 	case TypeInfo_Array:
-		for(i = 0; i <= size - type->__size; i += type->__size)
+		for(i = 0; i <= size - type->__size; i += type->__size) {
 			//playgcprog(i, (uintptr*)type->gc + 1, dumpeface_callback, obj);
+		}
 		break;
 	case TypeInfo_Chan:
 		if(type->__size == 0) // channels may have zero-sized objects in them
 			break;
-		for(i = runtime_Hchansize; i <= size - type->__size; i += type->__size)
+		for(i = runtime_Hchansize; i <= size - type->__size; i += type->__size) {
 			//playgcprog(i, (uintptr*)type->gc + 1, dumpeface_callback, obj);
+		}
 		break;
 	}
 }