gotypes,tests: test case for issue #195 (#214)

Adds test cases for the bug in #195, similar to #212.

Updates #195
Updates #191

gotypes/signature_test.go

@@ -159,7 +159,8 @@ func TestSignatureSizes(t *testing.T) {
 		{"func(uint64) uint64", 16},
 		{"func([7]byte) byte", 9},
 		{"func(uint64, uint64) (uint64, uint64)", 32},
-		{"func(uint16)", 2},
+		{"func(uint16)", 2},           // issue #191
+		{"func(*uint64, uint32)", 12}, // issue #195
 	}
 	for _, c := range cases {
 		s, err := ParseSignature(c.Expr)