Implicit conversion of round numbers to integers (#4542)

Signed-off-by: Nick Cameron <nrc@ncameron.org>

src/wasm-lib/kcl/tests/if_else/program_memory.snap

@@ -1,5 +1,6 @@
 ---
 source: kcl/src/simulation_tests.rs
+assertion_line: 92
 description: Program memory after executing if_else.kcl
 snapshot_kind: text
 ---
@@ -28,8 +29,8 @@ snapshot_kind: text
           "__meta": []
         },
         "a": {
-          "type": "Int",
-          "value": 3,
+          "type": "Number",
+          "value": 3.0,
           "__meta": [
             {
               "sourceRange": [
@@ -41,8 +42,8 @@ snapshot_kind: text
           ]
         },
         "b": {
-          "type": "Int",
-          "value": 4,
+          "type": "Number",
+          "value": 4.0,
           "__meta": [
             {
               "sourceRange": [
@@ -54,8 +55,8 @@ snapshot_kind: text
           ]
         },
         "c": {
-          "type": "Int",
-          "value": 5,
+          "type": "Number",
+          "value": 5.0,
           "__meta": [
             {
               "sourceRange": [