adding more elaborate directive example

hblang/examples/directives.hb

@@ -4,5 +4,13 @@ Type := struct {
 }
 
 main := fn(): int {
-	return @eca(int, 1, Type.(10, 20), @sizeof(Type), @alignof(Type), 5, 6);
+	byte := @as(u8, 10);
+	same_type_as_byte := @as(@TypeOf(byte), 30);
+	wide_uint := @as(u32, 40);
+	truncated_uint := @as(u8, @intcast(wide_uint));
+	size_of_Type_in_bytes := @sizeof(Type);
+	align_of_Type_in_bytes := @alignof(Type);
+	hardcoded_pointer := @as(^u8, @bitcast(10));
+	ecall_that_returns_int := @eca(int, 1, Type.(10, 20), 5, 6);
+	return 0;
 }

hblang/tests/codegen_tests_different_types.txt

@@ -1,3 +1,3 @@
-code size: 477
+code size: 471
 ret: 512
 status: Ok(())

hblang/tests/codegen_tests_directives.txt

@@ -1,4 +1,4 @@
 ev: Ecall
-code size: 182
+code size: 235
 ret: 0
 status: Ok(())

hblang/tests/codegen_tests_example.txt

@@ -1,3 +1,3 @@
-code size: 85
+code size: 82
 ret: 1
 status: Ok(())

hblang/tests/codegen_tests_fb_driver.txt

@@ -1,3 +1,3 @@
-code size: 525
+code size: 513
 ret: 0
 status: Ok(())

hblang/tests/codegen_tests_if_statements.txt

@@ -1,3 +1,3 @@
-code size: 265
+code size: 262
 ret: 55
 status: Ok(())

hblang/tests/codegen_tests_structs.txt

@@ -1,3 +1,3 @@
-code size: 420
+code size: 417
 ret: 3
 status: Ok(())