Use IntFixnumLiteralNode instead of LongFixnumLiteralNode where possible in visitRationalNode

Author: andrykonchin

spec/truffle/parsing/fixtures/complex_numbers/with_float_rational_imaginary_part.yaml

@@ -45,11 +45,11 @@ ast: |
                       ruby2KeywordsHashProfile = false
                   children:
                       arguments = [
-                          LongFixnumLiteralNode
+                          IntegerFixnumLiteralNode
                               attributes:
                                   flags = 0
                                   value = 314
-                          LongFixnumLiteralNode
+                          IntegerFixnumLiteralNode
                               attributes:
                                   flags = 0
                                   value = 100

spec/truffle/parsing/fixtures/complex_numbers/with_integer_rational_imaginary_part.yaml

@@ -44,11 +44,11 @@ ast: |
                       ruby2KeywordsHashProfile = false
                   children:
                       arguments = [
-                          LongFixnumLiteralNode
+                          IntegerFixnumLiteralNode
                               attributes:
                                   flags = 0
                                   value = 42
-                          LongFixnumLiteralNode
+                          IntegerFixnumLiteralNode
                               attributes:
                                   flags = 0
                                   value = 1

spec/truffle/parsing/fixtures/rational_numbers/with_float_point_value.yaml

@@ -24,11 +24,11 @@ ast: |
           ruby2KeywordsHashProfile = false
       children:
           arguments = [
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = 42100500
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = 1000000

spec/truffle/parsing/fixtures/rational_numbers/with_integer_value.yaml

@@ -24,11 +24,11 @@ ast: |
           ruby2KeywordsHashProfile = false
       children:
           arguments = [
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = 42
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = 1

spec/truffle/parsing/fixtures/rational_numbers/with_negative_value.yaml

@@ -24,11 +24,11 @@ ast: |
           ruby2KeywordsHashProfile = false
       children:
           arguments = [
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = -42
-              LongFixnumLiteralNode
+              IntegerFixnumLiteralNode
                   attributes:
                       flags = 0
                       value = 1

spec/truffle/parsing/fixtures/rescue/backtrace_optimization/enabled/when_rational_literal.yaml

@@ -41,11 +41,11 @@ ast: |
                                   ruby2KeywordsHashProfile = false
                               children:
                                   arguments = [
-                                      LongFixnumLiteralNode
+                                      IntegerFixnumLiteralNode
                                           attributes:
                                               flags = 0
                                               value = 42
-                                      LongFixnumLiteralNode
+                                      IntegerFixnumLiteralNode
                                           attributes:
                                               flags = 0
                                               value = 1

spec/truffle/parsing/fixtures/rescue/modifier/backtrace_optimization/enabled/when_rational_literal.yaml

@@ -37,11 +37,11 @@ ast: |
                                   ruby2KeywordsHashProfile = false
                               children:
                                   arguments = [
-                                      LongFixnumLiteralNode
+                                      IntegerFixnumLiteralNode
                                           attributes:
                                               flags = 0
                                               value = 42
-                                      LongFixnumLiteralNode
+                                      IntegerFixnumLiteralNode
                                           attributes:
                                               flags = 0
                                               value = 1

src/main/java/org/truffleruby/parser/BodyTranslator.java

@@ -1482,16 +1482,18 @@ public RubyNode visitFalseNode(FalseParseNode node) {
     public RubyNode visitFixnumNode(FixnumParseNode node) {
         final SourceIndexLength sourceSection = node.getPosition();
         final long value = node.getValue();
-        final RubyNode ret;
+        final RubyNode ret = integerOrLongLiteralNode(value);
+
+        ret.unsafeSetSourceSection(sourceSection);
+        return addNewlineIfNeeded(node, ret);
+    }
 
+    private RubyNode integerOrLongLiteralNode(long value) {
         if (CoreLibrary.fitsIntoInteger(value)) {
-            ret = new IntegerFixnumLiteralNode((int) value);
+            return new IntegerFixnumLiteralNode((int) value);
         } else {
-            ret = new LongFixnumLiteralNode(value);
+            return new LongFixnumLiteralNode(value);
         }
-        ret.unsafeSetSourceSection(sourceSection);
-
-        return addNewlineIfNeeded(node, ret);
     }
 
     @Override
@@ -2537,13 +2539,17 @@ public RubyNode visitPostExeNode(PostExeParseNode node) {
     public RubyNode visitRationalNode(RationalParseNode node) {
         final SourceIndexLength sourceSection = node.getPosition();
 
-        // TODO(CS): use IntFixnumLiteralNode where possible
+        long numerator = node.getNumerator();
+        final RubyNode numeratorNode = integerOrLongLiteralNode(numerator);
+
+        long denominator = node.getDenominator();
+        final RubyNode denominatorNode = integerOrLongLiteralNode(denominator);
 
         final RubyNode ret = translateRationalComplex(
                 sourceSection,
                 "Rational",
-                new LongFixnumLiteralNode(node.getNumerator()),
-                new LongFixnumLiteralNode(node.getDenominator()));
+                numeratorNode,
+                denominatorNode);
 
         return addNewlineIfNeeded(node, ret);
     }