1 files changed, 3 insertions, 3 deletions
diff --git a/JavaScriptCore/runtime/FunctionPrototype.cpp b/JavaScriptCore/runtime/FunctionPrototype.cpp
index a3a7479..f08bd5e 100644
--- a/JavaScriptCore/runtime/FunctionPrototype.cpp
+++ b/JavaScriptCore/runtime/FunctionPrototype.cpp
@@ -76,7 +76,7 @@ static inline void insertSemicolonIfNeeded(UString& functionBody)
         UChar ch = functionBody[i];
         if (!Lexer::isWhiteSpace(ch) && !Lexer::isLineTerminator(ch)) {
             if (ch != ';' && ch != '}')
-                functionBody = functionBody.substr(0, i + 1) + ";" + functionBody.substr(i + 1, functionBody.size() - (i + 1));
+                functionBody = makeString(functionBody.substr(0, i + 1), ";", functionBody.substr(i + 1, functionBody.size() - (i + 1)));
             return;
         }
     }
@@ -90,13 +90,13 @@ JSValue JSC_HOST_CALL functionProtoFuncToString(ExecState* exec, JSObject*, JSVa
             FunctionExecutable* executable = function->jsExecutable();
             UString sourceString = executable->source().toString();
             insertSemicolonIfNeeded(sourceString);
-            return jsString(exec, "function " + function->name(exec) + "(" + executable->paramString() + ") " + sourceString);
+            return jsString(exec, makeString("function ", function->name(exec), "(", executable->paramString(), ") ", sourceString));
         }
     }
 
     if (thisValue.inherits(&InternalFunction::info)) {
         InternalFunction* function = asInternalFunction(thisValue);
-        return jsString(exec, "function " + function->name(exec) + "() {\n    [native code]\n}");
+        return jsString(exec, makeString("function ", function->name(exec), "() {\n    [native code]\n}"));
     }
 
     return throwError(exec, TypeError);