Much renaming and refreshing of RBE

rustbyexample/primitives.rs

@@ -0,0 +1,21 @@
+#[allow(unused_variables)]
+#[allow(unused_assignments)]
+fn main() {
+    let logical: bool = true;
+
+    let a_float: f64 = 1.0;
+    let an_integer = 5i32;
+
+    let default_float = 3.0;
+    let default_integer = 7;
+
+    let mut inferred_type = 12;
+    inferred_type = 4294967296i64;
+
+    let mut mutable = 12;
+    mutable = 21;
+
+    // mutable = true;
+
+    let mutable = true;
+}