[clang] [clang-repl] adding documentation and information for %commands (PR #150348)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Aaron Danen (aadanen)

<details>
<summary>Changes</summary>

so far just added undo to the documentation. We can see about implementing %help or something similar. This will attempt to solve issue #<!-- -->143666 

---
Full diff: https://github.com/llvm/llvm-project/pull/150348.diff


1 Files Affected:

- (modified) clang/docs/ClangRepl.rst (+7) 


``````````diff
diff --git a/clang/docs/ClangRepl.rst b/clang/docs/ClangRepl.rst
index 5399036c123fb..9ef82df28ee43 100644
--- a/clang/docs/ClangRepl.rst
+++ b/clang/docs/ClangRepl.rst
@@ -197,6 +197,13 @@ Comments:
    clang-repl> // Comments in Clang-Repl
    clang-repl> /* Comments in Clang-Repl */
 
+Undo:
+=====
+
+.. code-block:: text
+
+   clang-repl>%undo
+
 
 Closure or Termination:
 =======================

``````````

</details>


https://github.com/llvm/llvm-project/pull/150348