Fix Memory: Use exported memory

Author: ubaidsk

components/LoadLFortran.js

@@ -158,9 +158,10 @@ async function setup_lfortran_funcs(lfortran_funcs, myPrint) {
     lfortran_funcs.execute_code = async function (bytes, stdout_print) {
         var exit_code = {val: 1}; /* non-zero exit code */
         var outputBuffer = [];
-        var memory = new WebAssembly.Memory({ initial: 100, maximum: 100 }); // fixed 6.4 Mb memory currently
+        const wasm = await WebAssembly.compile(bytes);
+        var memory = wasm.exports.memory;
         var imports = define_imports(memory, outputBuffer, exit_code, stdout_print);
-        var err_msg = await run_wasm(bytes, imports);
+        var err_msg = await run_wasm(wasm, imports);
         stdout_print(outputBuffer.join(""));
         if (exit_code.val == 0) {
             return;