LTOVisibility.rst: fix up syntax in example

[dankamongmen]

Summary

Pretty self-evident. This example was missing an lparen. Added it, and fixed up the ASCII art.

[pcc]

LGTM

[dankamongmen]

Thanks, @pcc! Is there anything I need to do, or am I just waiting on someone to merge this?

[dankamongmen]

I hate to bother anyone, but can this go ahead and get merged? :) thanks

[tejohnson]

In D70765#1802564, @dankamongmen wrote:

I hate to bother anyone, but can this go ahead and get merged? :) thanks

Typically the author commits the patch, unless they don't have commit access and request the reviewer to commit for them, but I don't see a request for that here.

[dankamongmen]

Typically the author commits the patch, unless they don't have commit access and request the reviewer to commit for them, but I don't see a request for that here.

Thanks, Teresa. I indeed do not have commit access (so far as I know or can tell, anyway), so please consider this comment to be such a request.

[tejohnson]

In D70765#1807609, @dankamongmen wrote:

Typically the author commits the patch, unless they don't have commit access and request the reviewer to commit for them, but I don't see a request for that here.

Thanks, Teresa. I indeed do not have commit access (so far as I know or can tell, anyway), so please consider this comment to be such a request.

I can go ahead and take care of committing for you today. BTW if you plan to contribute more and want commit access, the instructions are here: https://llvm.org/docs/DeveloperPolicy.html#new-contributors

clang/docs/LTOVisibility.rst

.. code-block:: none
     |  |                                                     |  |  |  }                                                 |
     |  |  struct A { ... };                                  |  |  |  void C::f() {}                                    |
     |  |  struct [[clang::lto_visibility_public]] B { ... }; |  |  |  struct D {                                        |
     |  |  struct __attribute__((visibility("default"))) C {  |  |  |    virtual void g() = 0;                           |
     |  |    virtual void f();                                |  |  |  };                                                |
     |  |  };                                                 |  |  |  struct E : D {                                    |
     |  |  struct [[clang::lto_visibility_public]] D {        |  |  |    virtual void g() { ... }                        |
     |  |    virtual void g() = 0;                            |  |  |  };                                                |
-    |  |  };                                                 |  |  |  __attribute__(visibility("default"))) D *mkE() {  |
+    |  |  };                                                 |  |  |  __attribute__((visibility("default"))) D *mkE() { |
     |  |                                                     |  |  |    return new E;                                   |
     |  +-----------------------------------------------------+  |  |  }                                                 |
     |                                                           |  |                                                    |
     |  struct B { ... };                                        |  +----------------------------------------------------+
     |                                                           |
     +-----------------------------------------------------------+
 
 We will now describe the LTO visibility of each of the classes defined in