[LLVMbugs] [Bug 21817] New: [fuzz] Assertion `!isTokenSpecial() && "Should consume special tokens with Consume*Token"' failed.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=21817

            Bug ID: 21817
           Summary: [fuzz] Assertion `!isTokenSpecial() && "Should consume
                    special tokens with Consume*Token"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: sami.liedes at iki.fi
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 13459
  --> http://llvm.org/bugs/attachment.cgi?id=13459&action=edit
test case

Fuzzing discovered that the attached test case, when given as input to

  clang -fno-crash-diagnostics -std=c++11 -xc++ -c -emit-llvm

causes this assertion failure:

special-tokens-consume.cpp:1:1: error: C++ requires a type specifier for all
declarations
a (-asing[
^
special-tokens-consume.cpp:1:5: error: use of undeclared identifier 'asing';
did you mean 'using'?
a (-asing[
    ^~~~~
    using
tools/clang/include/clang/Parse/Parser.h:283: clang::SourceLocation
clang::Parser::ConsumeToken(): Assertion `!isTokenSpecial() && "Should consume
special tokens with Consume*Token"' failed.

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