Make eager examples showcase "eager" eval more

The existing examples did not really showcase the "eagerness" of the
evaluation.

Author: jstuder-gh

doc/Type/Any.pod6

@@ -244,10 +244,12 @@ Defined as:
 
     method eager(--> Seq:D) is nodal
 
-Interprets the invocant as a list, evaluates it eagerly, and returns that
-list.
+Interprets the invocant as a C<List>, evaluates it eagerly, and returns that
+C<List>.
 
-    say (1..10).eager;              # OUTPUT: «(1 2 3 4 5 6 7 8 9 10)␤»
+    my  $range = 1..5;
+    say $range;         # OUTPUT: «1..5␤»
+    say $range.eager;   # OUTPUT: «(1 2 3 4 5)␤»
 
 =head2 method elems
 

doc/Type/List.pod6

@@ -646,9 +646,12 @@ Defined as:
     multi method eager(List:D: --> List:D)
     multi sub eager(*@elems --> List:D)
 
-Evaluates all elements in the list eagerly, and returns them as a list.
+Evaluates all elements in the C<List> eagerly, and returns them as a C<List>.
 
-    say (1,2,3,4,5).eager; # OUTPUT: «(1 2 3 4 5)␤»
+    my  \ll = (lazy 1..5).cache;
+
+    say ll[];     # OUTPUT: «(...)␤»
+    say ll.eager  # OUTPUT: «(1 2 3 4 5)␤»
 
 =head2 routine reverse
 

doc/Type/Seq.pod6

@@ -83,6 +83,19 @@ sequence, and marks it as consumed.
 If called on an already consumed sequence, throws an error of type
 L<X::Seq::Consumed>.
 
+    my $s = lazy 1..5;
+
+    say $s.is-lazy; # OUTPUT: «True␤»
+    say $s.eager;   # OUTPUT: «(1 2 3 4 5)␤»
+
+    say $s.eager;
+    CATCH {
+        when X::Seq::Consumed {
+            say 'Throws exception if already consumed';
+        }
+    }
+    # OUTPUT: «Throws exception if already consumed␤»
+
 
 =head2 method from-loop