Merging the fix that rids os malloc from sms object interactions

sms_src/examples/benchmark.sms

@@ -19,7 +19,7 @@
 
   let f = (n) =>
     if( n <= 1 )
-      n
+      1
     else
       f(n - 1) + f(n - 2);
   benchmark(:f(31));

sms_src/examples/benchmark_fastfib.sms

@@ -0,0 +1,34 @@
+#!/usr/local/bin/sms -qm 1800 
+# Use this to benchmark something
+# I came up with a faster fib that doesn't memoize
+
+{
+  let t1 =[];
+  let t2 =[];
+  let time_elapsed =0;
+  let a =0;
+  let benchmark = (e) => {
+    putln("Benchmarking: " str+ toStr(e));
+
+    t1 = time();
+    putln(toStr(eval(e)));
+    t2 = time();
+
+    putln("Total time:");
+    time_elapsed = 1000 * (t2[0] - t1[0]) +  0.001 * (t2[1] - t1[1]);
+    putln(toStr(time_elapsed) str+ " milliseconds")
+  };
+
+  let first5 = [1,1,2,3,5];
+  let f = (n) => {
+    if(n<5)
+        return first5[n];
+    let s2= f(n-2);
+    let s3= f(n-3);
+    let s4= f(n-4);
+
+    return 2*s3+s4+s2 ;
+  };
+
+  benchmark(:f(31));
+};

sms_src/examples/repl.sms

@@ -5,7 +5,7 @@
 {
   let in = "";
   let ans = [];
-  let env = {};
+  let env = _scratch;
   while(true){
     put("> ");
     in = input();

src/main/sms.h

@@ -95,7 +95,6 @@ enum sm_object_type {
 #include "memory/sm_space.h"
 #include "memory/sm_gc.h"
 #include "sm_global.h"
-#include "terminal/sm_terminal_input.h"
 #include "terminal/sm_terminal_output.h"
 #include "engine/str.h"
 #include "engine/sm_diff.h"