Add test for issue #7689

tests/issues/test_issue_7689/test_issue_7689.odin

@@ -0,0 +1,21 @@
+package bug_repro
+
+import "core:fmt"
+import "core:os"
+
+main :: proc() {
+	x := len(os.args)+1 // runtime value so nothing is folded
+
+	r: int
+	if x == 1 {
+		r = 1
+	} else if x == 2 {
+		r = 2
+	} else if x == 3 {
+		r = 3
+	} else if x == 4 {
+		r = 4
+	}
+
+	fmt.println(r)
+}