add inner (of lists) type, add floor, ceil, and roundd standard functions, and a ton of examples

tests/conditions.ang

@@ -3,9 +3,8 @@ assertEq(1, 1)
 assertEq(0, 0)
 assertEq("", "")
 
-assertEq([], [])
+assertEq([]number, []number)
 assertEq([3, 1, 4, 1], [3, 1, 4, 1])
-assertEq([true, 1024, nil, "Hello world!"], [true, 1024, nil, "Hello world!"])
 
 # Inequality
 assertNotEq(2, 3)

tests/list.ang

@@ -1,4 +1,4 @@
-list := []
+list := []number
 
 x := 1
 while x <= 1000 {
@@ -14,7 +14,7 @@ func sum(a: number, b: number) number {
     return a + b
 }
 
-list = []
+list = []number
 x = 1
 while x <= 100 {
     list.append(2*x - 1)

tests/refs.ang

@@ -1,5 +1,5 @@
 
-list := []
+list := []number
 
 list.append(1)
 list.append(2)

tests/scope.ang

@@ -4,9 +4,12 @@ a := 2
 {
     a := 3
     assertEq(a, 3)
+    breakpoint
 
     a = 4
     assertEq(a, 4)
+    breakpoint
 }
 
 assertEq(a, 2)
+breakpoint