Combining else blocks

Author: tinganho

src/compiler/emitter.ts

@@ -1372,15 +1372,10 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
  let length = elements.length;
  while (pos < length) {
  // Emit using the pattern <group0>.concat(<group1>, <group2>, ...)
- if (group === 1) {
- if(useConcat) {
- write(".concat(");
- }
- else { 
- write(", ");
- }
+ if (group === 1 && useConcat) {
+ write(".concat(");
  }
- else if (group > 1) {
+ else if (group > 0) {
  write(", ");
  }
  let e = elements[pos];