Re-generate {Attribute,ClangCommandLine,Diagnostics}Reference.rst

$ bin/clang-tblgen -gen-diag-docs -I../cfe.src/include \
      -I../cfe.src/include/clang/Basic/ \
      ../cfe.src/include/clang/Basic/Diagnostic.td -o \
      ../cfe.src/docs/DiagnosticsReference.rst && \
bin/clang-tblgen -gen-attr-docs -I../cfe.src/include \
        ../cfe.src/include/clang/Basic/Attr.td -o \
        ../cfe.src/docs/AttributeReference.rst && \
bin/clang-tblgen -gen-opt-docs -I../cfe.src/include \
        -I../cfe.src/include/clang/Driver -I../llvm.src/include \
        ../cfe.src/include/clang/Driver/ClangOptionDocs.td -o \
        ../cfe.src/docs/ClangCommandLineReference.rst

llvm-svn: 370450
diff --git a/clang/docs/DiagnosticsReference.rst b/clang/docs/DiagnosticsReference.rst
index 0b62412..fe0325b 100644
--- a/clang/docs/DiagnosticsReference.rst
+++ b/clang/docs/DiagnosticsReference.rst
@@ -6028,6 +6028,17 @@
 Controls `-Wincomplete-umbrella`_, `-Wnon-modular-include-in-module`_.
 
 
+-Wincomplete-setjmp-declaration
+-------------------------------
+This diagnostic is enabled by default.
+
+**Diagnostic text:**
+
++---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+|:warning:`warning:` |nbsp| :diagtext:`declaration of built-in function '`:placeholder:`A`:diagtext:`' requires the declaration of the 'jmp\_buf' type, commonly provided in the header <setjmp.h>.`|
++---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
+
+
 -Wincomplete-umbrella
 ---------------------
 This diagnostic is enabled by default.