[ASTMatchers] Re-generate ast matchers doc after rL346455.

llvm-svn: 347453
diff --git a/clang/docs/LibASTMatchersReference.html b/clang/docs/LibASTMatchersReference.html
index 4ba2b62..b547f7e 100644
--- a/clang/docs/LibASTMatchersReference.html
+++ b/clang/docs/LibASTMatchersReference.html
@@ -795,6 +795,17 @@
 </pre></td></tr>
 
 
+<tr><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('constantExpr0')"><a name="constantExpr0Anchor">constantExpr</a></td><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1ConstantExpr.html">ConstantExpr</a>&gt;...</td></tr>
+<tr><td colspan="4" class="doc" id="constantExpr0"><pre>Matches a constant expression wrapper.
+
+Example matches the constant in the case statement:
+    (matcher = constantExpr())
+  switch (a) {
+  case 37: break;
+  }
+</pre></td></tr>
+
+
 <tr><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1Stmt.html">Stmt</a>&gt;</td><td class="name" onclick="toggle('continueStmt0')"><a name="continueStmt0Anchor">continueStmt</a></td><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1ContinueStmt.html">ContinueStmt</a>&gt;...</td></tr>
 <tr><td colspan="4" class="doc" id="continueStmt0"><pre>Matches continue statements.