Add or_fun_call index test

Author: camsteffen

tests/ui/or_fun_call.fixed

@@ -70,6 +70,10 @@ fn or_fun_call() {
     let opt = Some(1);
     let hello = "Hello";
     let _ = opt.ok_or(format!("{} world.", hello));
+
+    // index
+    let map = HashMap::<u64, u64>::new();
+    let _ = Some(1).unwrap_or_else(|| map[&1]);
 }
 
 struct Foo(u8);

tests/ui/or_fun_call.rs

@@ -70,6 +70,10 @@ fn or_fun_call() {
     let opt = Some(1);
     let hello = "Hello";
     let _ = opt.ok_or(format!("{} world.", hello));
+
+    // index
+    let map = HashMap::<u64, u64>::new();
+    let _ = Some(1).unwrap_or(map[&1]);
 }
 
 struct Foo(u8);

tests/ui/or_fun_call.stderr

@@ -78,17 +78,23 @@ error: use of `unwrap_or` followed by a function call
 LL |     let _ = stringy.unwrap_or("".to_owned());
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| "".to_owned())`
 
+error: use of `unwrap_or` followed by a function call
+  --> $DIR/or_fun_call.rs:76:21
+   |
+LL |     let _ = Some(1).unwrap_or(map[&1]);
+   |                     ^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|| map[&1])`
+
 error: use of `or` followed by a function call
-  --> $DIR/or_fun_call.rs:93:35
+  --> $DIR/or_fun_call.rs:97:35
    |
 LL |     let _ = Some("a".to_string()).or(Some("b".to_string()));
    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| Some("b".to_string()))`
 
 error: use of `or` followed by a function call
-  --> $DIR/or_fun_call.rs:97:10
+  --> $DIR/or_fun_call.rs:101:10
    |
 LL |         .or(Some(Bar(b, Duration::from_secs(2))));
    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `or_else(|| Some(Bar(b, Duration::from_secs(2))))`
 
-error: aborting due to 15 previous errors
+error: aborting due to 16 previous errors