clearer organization for compiler tests

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

test/compiler/fragments/test_hello.rb

@@ -0,0 +1,18 @@
+require_relative 'helper'
+
+class TestHello < MiniTest::Test
+  include Fragments
+
+  def test_hello
+    @string_input = <<HERE
+class Object
+  int main()
+    "Hello Raisa, I am salama".putstring()
+  end
+end
+HERE
+    @expect = [[Virtual::MethodEnter,Virtual::Set,Register::GetSlot,Virtual::Set,
+                Virtual::Set,Virtual::MethodCall] ,[Virtual::MethodReturn]]
+    check
+  end
+end