[commit: ghc] master: Add -ddump-rtti to user's guide and man page (4760a8c)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/4760a8c1d5f5e0daea7a5a3cae7721f4a214d2ff/ghc

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commit 4760a8c1d5f5e0daea7a5a3cae7721f4a214d2ff
Author: Ömer Sinan Ağacan <omeragacan at gmail.com>
Date:   Fri Jun 29 09:46:24 2018 +0300

    Add -ddump-rtti to user's guide and man page
    
    Reviewers: bgamari
    
    Subscribers: rwbarton, thomie, carter
    
    Differential Revision: https://phabricator.haskell.org/D4903


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4760a8c1d5f5e0daea7a5a3cae7721f4a214d2ff
 docs/users_guide/debugging.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/users_guide/debugging.rst b/docs/users_guide/debugging.rst
index 1a37eae..ab5942f 100644
--- a/docs/users_guide/debugging.rst
+++ b/docs/users_guide/debugging.rst
@@ -554,6 +554,12 @@ These flags dump various bits of information from other backends.
 
     Dump byte-code objects (BCOs) produced for the GHC's byte-code interpreter.
 
+.. ghc-flag:: -ddump-rtti
+    :shortdesc: Trace runtime type inference
+    :type: dynamic
+
+    Trace runtime type inference done by various interpreter commands.
+
 .. ghc-flag:: -ddump-foreign
     :shortdesc: Dump ``foreign export`` stubs
     :type: dynamic