Improved type system

tests/errors/TypeMismatch.q

@@ -2,6 +2,6 @@ main() {
 	writeToMemory(42)
 }
 
-writeToMemory(p Pointer) {
+writeToMemory(p *Any) {
 	p[0] = 'A'
 }

tests/errors_test.go

@@ -46,7 +46,7 @@ var errs = []struct {
 	{"MissingParameter3.q", errors.MissingParameter},
 	{"MissingType.q", errors.MissingType},
 	{"ReturnCountMismatch.q", &errors.ReturnCountMismatch{Count: 1, ExpectedCount: 0}},
-	{"TypeMismatch.q", &errors.TypeMismatch{Expected: "Pointer", Encountered: "Int64", ParameterName: "p"}},
+	{"TypeMismatch.q", &errors.TypeMismatch{Expected: "*Any", Encountered: "Int64", ParameterName: "p"}},
 	{"UnknownFunction.q", &errors.UnknownFunction{Name: "unknown"}},
 	{"UnknownFunction2.q", &errors.UnknownFunction{Name: "f"}},
 	{"UnknownIdentifier.q", &errors.UnknownIdentifier{Name: "x"}},

tests/programs/memory-free.q

@@ -2,6 +2,5 @@ import mem
 
 main() {
 	address := mem.alloc(1024)
-	err := mem.free(address, 1024)
-	assert err == 0
+	assert mem.free(address) == 0
 }