Move Rat.Str to Real (with tweaks), delete Rat.Int tweak other Real.S…

…tr methods so things still work.

src/cheats/num.pm

@@ -1,5 +1,5 @@
 augment class Num {
-    our Str multi method Str() {
+    our Str method Str() {
         ~self
     }
 }

src/core/Complex.pm

@@ -25,7 +25,7 @@ class Complex does Numeric is Cool {
         "Complex.new($.re, $.im)";
     }
 
-    multi method Str() {
+    method Str() {
         "$.re + {$.im}i";
     }
 

src/core/Rat.pm

@@ -32,17 +32,13 @@ class Rat is Cool does Real {
 
     method Bool() { $!numerator != 0 ?? Bool::True !! Bool::False }
 
-    method Int() { self.Num.Int; }
-
     method Rat(Real $epsilon = 1.0e-6) { self; }
 
     method Num() {
         $!denominator == 0 ?? Inf * $!numerator.sign
                            !! $!numerator.Num / $!denominator.Num;
     }
 
-    multi method Str() { $.Num.Str; }
-
     multi method nude() { $.numerator, $.denominator; }
 
     method succ {

src/core/Real.pm

@@ -25,6 +25,10 @@ role Real does Numeric {
         Complex.new(self, 0);
     }
 
+    method Str() {
+        self.Bridge.Str;
+    }
+
     method reals() {
         (self);
     }