[ASTMatchers] NFC: Fix the annotation.

[Sockke]

Summary

The annotation about ignoringImpCasts is wrong, which will cause misunderstanding. Fix it.

gehry
ByteDance

[aaron.ballman]

The change looks good to me, but you need to regenerate the documentation manually. You can do so by running clang/docs/tools/dump_ast_matchers.py.

[Sockke]

Thanks for your review! I have run clang/docs/tools/dump_ast_matchers.py to regenerate the documentation.

[MTC]

LGTM, thanks for your cleanup.

[Sockke]

update to display context.

[aaron.ballman]

LGTM, thank you for the fix! Do you need me to commit it on your behalf? If so, what name and email address would you like me to use for patch attribution?

[Sockke]

I would appreciate it if you could submit it on my behalf. Thanks a lot!

Name: liuke
Email: [e-mail]

[aaron.ballman]

Thank you for the patch! I've commit on your behalf in 034b94bb7161c64234e4ec35bf49428c3a1f8f0a.

clang/docs/LibASTMatchersReference.html

Given
   long e = (long) 0l;
 The matchers
    varDecl(hasInitializer(ignoringImpCasts(integerLiteral())))
    varDecl(hasInitializer(ignoringImpCasts(declRefExpr())))
 would match the declarations for a, b, c, and d, but not e.
 While
    varDecl(hasInitializer(integerLiteral()))
    varDecl(hasInitializer(declRefExpr()))
-only match the declarations for b, c, and d.
+only match the declarations for a.
 </pre></td></tr>
 
 
 <tr><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt;</td><td class="name" onclick="toggle('ignoringImplicit0')"><a name="ignoringImplicit0Anchor">ignoringImplicit</a></td><td>Matcher&lt;<a href="https://clang.llvm.org/doxygen/classclang_1_1Expr.html">Expr</a>&gt; InnerMatcher</td></tr>
 <tr><td colspan="4" class="doc" id="ignoringImplicit0"><pre>Matches expressions that match InnerMatcher after any implicit AST
 nodes are stripped off.
 
 Parentheses and explicit casts are not discarded.

clang/include/clang/ASTMatchers/ASTMatchers.h

 ///    varDecl(hasInitializer(ignoringImpCasts(declRefExpr())))
 /// \endcode
 /// would match the declarations for a, b, c, and d, but not e.
 /// While
 /// \code
 ///    varDecl(hasInitializer(integerLiteral()))
 ///    varDecl(hasInitializer(declRefExpr()))
 /// \endcode
-/// only match the declarations for b, c, and d.
+/// only match the declarations for a.
 AST_MATCHER_P(Expr, ignoringImpCasts,
               internal::Matcher<Expr>, InnerMatcher) {
   return InnerMatcher.matches(*Node.IgnoreImpCasts(), Finder, Builder);
 }
 
 /// Matches expressions that match InnerMatcher after parentheses and
 /// casts are stripped off.
 ///