[JS AST] Don't generate a new line after try and if-then blocks

js/js.ast/src/org/jetbrains/kotlin/js/backend/JsToStringGenerationVisitor.java

@@ -653,6 +653,10 @@ public class JsToStringGenerationVisitor extends JsVisitor {
         }
         nestedPush(thenStmt);
 
+        if (thenStmt instanceof JsBlock) {
+            lineBreakAfterBlock = false;
+        }
+
         sourceLocationConsumer.pushSourceInfo(null);
         accept(thenStmt);
         sourceLocationConsumer.popSourceInfo();
@@ -984,6 +988,7 @@ public class JsToStringGenerationVisitor extends JsVisitor {
     public void visitTry(@NotNull JsTry x) {
         p.print(CHARS_TRY);
         spaceOpt();
+        lineBreakAfterBlock = false;
         accept(x.getTryBlock());
 
         acceptList(x.getCatches());