clearer organization for compiler tests

was slightly messy with small/large
now needed different test for expression and statements

test/compiler/fragments/test_recursive_fibo.rb

@@ -0,0 +1,34 @@
+require_relative 'helper'
+
+class TestRecursinveFibo < MiniTest::Test
+  include Fragments
+
+  def test_recursive_fibo
+    @string_input = <<HERE
+class Object
+  int fibonaccir( int n )
+    if( n <= 1 )
+      return n
+    else
+      int tmp
+      tmp = n - 1
+      int a = fibonaccir( tmp )
+      tmp = n - 2
+      int b = fibonaccir( tmp )
+      return a + b
+    end
+  end
+  int fib_print(int n)
+    int fib = fibonaccir( n )
+    fib.putint()
+  end
+  int main()
+    fib_print(10)
+  end
+end
+HERE
+  @expect =  [[Virtual::MethodEnter,Register::GetSlot,Virtual::Set,Virtual::Set,
+            Virtual::Set,Virtual::Set,Virtual::MethodCall] , [Virtual::MethodReturn]]
+  check
+  end
+end