Cleaned up tests/ui/numbers-arithmetic/uint.rs and renamed to usize-base.rs

Author: spencer3035

tests/ui/numbers-arithmetic/uint.rs

@@ -0,0 +1,25 @@
+//! Tests basic `usize` functionality
+
+//@ run-pass
+
+pub fn main() {
+    // Literal matches assignment type
+    let a: usize = 42usize;
+    // Literal cast
+    let b: usize = 42 as usize;
+    // Literal type inference from assignment type
+    let c: usize = 42;
+    // Assignment type inference from literal (and later comparison)
+    let d = 42usize;
+    // Function return value type inference
+    let e = return_val();
+
+    assert_eq!(a, b);
+    assert_eq!(a, c);
+    assert_eq!(a, d);
+    assert_eq!(a, e);
+}
+
+fn return_val() -> usize {
+    42
+}