Keep indentations consistent in wrapper generation

Commit 9dfb86e moved multiple loops that performed indentations to use the `indent` function. Some nested loops that indented upto the indent level ( with a loop condition of `j <= indent_level`) should have incremented the indent level before passing it to the helper function, but did not, resulting in inconsistent indentations.

Author: aaronj0

lib/Interpreter/CppInterOp.cpp

@@ -1918,7 +1918,7 @@ namespace Cpp {
             callbuf << ' ';
           } else {
             callbuf << "\n";
-            indent(callbuf, indent_level);
+            indent(callbuf, indent_level + 1);
           }
         }
         if (refType != kNotReference) {
@@ -1978,7 +1978,7 @@ namespace Cpp {
                 callbuf << ' ';
               } else {
                 callbuf << "\n";
-                indent(callbuf, indent_level);
+                indent(callbuf, indent_level + 1);
               }
             }
             const ParmVarDecl* PVD = FD->getParamDecl(i);
@@ -2052,7 +2052,7 @@ namespace Cpp {
             callbuf << ' ';
           } else {
             callbuf << "\n";
-            indent(callbuf, indent_level);
+            indent(callbuf, indent_level + 1);
           }
         }