Improved type system

tests/errors/MissingParameter2.q

@@ -1 +1 @@
-f(a Int,) -> Int { return a }
+f(a int,) -> int { return a }

tests/errors/MissingParameter3.q

@@ -1 +1 @@
-f(,a Int) {}
+f(,a int) {}

tests/errors/TypeMismatch.q

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

tests/errors/UnknownIdentifier3.q

@@ -2,6 +2,6 @@ main() {
 	x := 1 + f(x)
 }
 
-f(x Int) -> Int {
+f(x int) -> int {
 	return x
 }