feat: add macro benchmark for JSON parsing and micro benchmark for array operations.

Author: ProgrammerKR

benchmarks/macro/json_bench.prox

@@ -4,19 +4,19 @@
 class JsonParser {
     init(inp) {
         print("Inside init");
-        this.input = inp;
+        this.src = inp;
         this.pos = 0;
         this.len = len(inp);
     }
 
     peek() {
         if (this.pos >= this.len) return "";
-        return substr(this.input, this.pos, 1);
+        return substr(this.src, this.pos, 1);
     }
 
     consume() {
         if (this.pos >= this.len) return "";
-        let c = substr(this.input, this.pos, 1);
+        let c = substr(this.src, this.pos, 1);
         this.pos = this.pos + 1;
         return c;
     }

benchmarks/micro/array_ops.prox

@@ -1,6 +1,5 @@
 
 func main() {
-    print(push);
     let start = clock();
     let arr = [];
     for (let i = 0; i < 50000; i = i + 1) {