Improve infix:<x>

doc/Language/operators.pod6

@@ -1053,28 +1053,20 @@ operation.
 =head2 infix C«x»
 
 =begin code :skip-test
-proto sub infix:<x>(Any, Any) returns Str:D
-multi sub infix:<x>(Any, Any)
-multi sub infix:<x>(Str:D, Int:D)
+sub infix:<x>($a, $b) returns Str:D
 =end code
 
 X<String repetition operator>.
 
-Coerces C<$a> to L<Str> and C<$b> to L<Int> and repeats the string C<$a> C<$b>
-times. Return the empty string if C<< $b <= 0 >>.
+Repeats the string C<$a> C<$b> times, if necessary coercing C<$a> to L«C<Str>|/type/Str»
+and C<$b> L«C<Int>|/type/Int». Returns an empty string if C<< $b <= 0 >>.
 
     say 'ab' x 3;           # ababab
     say 42 x 3;             # 424242
-    my $a = 'a'; my $b = 3;
+    
+    my $a = 'a'.IO; my $b = 3.5;
     say $a x $b;            # aaa
 
-Note there is currently no warning to the user when C<$b> is coerced to a zero or negative integer:
-
-    say 5 x ' ';            # ''
-    say 5 x 'a';            # ''
-    my $a = 3; my $b = 'a';
-    say $a x $b;            # ''
-
 =head2 infix C«xx»
 
 =begin code :skip-test