clang-rename: fix the DynamicCastExpr test on ps4

[vmiklos]

Summary

It has RTTI disabled by default, so need to enable it explicitly.

[silvas]

It has no RTTI, so the test would always fail in a non-interesting way.

It does. There is a call to dynamic_cast on lines 20 and 21 of this test. You can fix this by explicitly adding -frtti I believe.

[silvas]

In D21186#454497, @silvas wrote:

It has no RTTI, so the test would always fail in a non-interesting way.

It does. There is a call to dynamic_cast on lines 20 and 21 of this test. You can fix this by explicitly adding -frtti I believe.

Sorry, that was a bit unclear (I thought you meant "it" meaning "this test"). On PS4 RTTI is disabled by default, but -frtti turns it on, so you should be able to add -frtti to this test to fix it.

[vmiklos]

Ah, then the fix is simpler, I guess. :-)

[vmiklos]

Correct diff this time.

[silvas]

LGTM

clang-tools-extra/trunk/test/clang-rename/DynamicCastExpr.cpp

 // RUN: cat %s > %t.cpp
-// RUN: clang-rename -offset=186 -new-name=X %t.cpp -i --
+// RUN: clang-rename -offset=193 -new-name=X %t.cpp -i -- -frtti
 // RUN: sed 's,//.*,,' %t.cpp | FileCheck %s
 class Base {
   virtual int getValue() const = 0;
 };
 
 class Derived : public Base {
 public:
   int getValue() const {