[ruby/prism] Reconfigure rationals

This eliminates the subnode on RationalNode and replaces it with two
integer fields, which represent the ratio for the rational. It also
reduces those two integers if they both fit into 32 bits.

Importantly, this PR does not implement bignum reduction. That's something
I'd like to consider for the future, but it's simple enough for now to
leave them unreduced, which makes it more useful than it used to be.

https://github.com/ruby/prism/commit/86e06c7068

1 files changed, 6 insertions, 7 deletions

diff --git a/test/prism/snapshots/whitequark/complex.txt b/test/prism/snapshots/whitequark/complex.txt
index e688585a5f..bc748db09b 100644
--- a/test/prism/snapshots/whitequark/complex.txt
+++ b/test/prism/snapshots/whitequark/complex.txt
@@ -10,9 +10,9 @@
         ├── @ ImaginaryNode (location: (3,0)-(3,6))
         │   └── numeric:
         │       @ RationalNode (location: (3,0)-(3,5))
-        │       └── numeric:
-        │           @ FloatNode (location: (3,0)-(3,4))
-        │           └── value: 42.1
+        │       ├── flags: decimal
+        │       ├── numerator: 421
+        │       └── denominator: 10
         ├── @ ImaginaryNode (location: (5,0)-(5,3))
         │   └── numeric:
         │       @ IntegerNode (location: (5,0)-(5,2))
@@ -21,7 +21,6 @@
         └── @ ImaginaryNode (location: (7,0)-(7,4))
             └── numeric:
                 @ RationalNode (location: (7,0)-(7,3))
-                └── numeric:
-                    @ IntegerNode (location: (7,0)-(7,2))
-                    ├── flags: decimal
-                    └── value: 42
+                ├── flags: decimal
+                ├── numerator: 42
+                └── denominator: 1