[Bug objc++/23707] New: ICE on invalid code after error

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Testcase:
@implementation SaturnDoc
- read: (void*)aStream ggg

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Found while looking into fixing PR 7098.
The error/ICE message:
t.mm:2: error: expected `:' at end of input
t.mm:2: error: expected identifier at end of input
t.mm: In function 'objc_object* -[SaturnDoc read:ggg:](SaturnDoc*, objc_selector*, void*, objc_object*)':
t.mm:2: internal compiler error: tree check: expected identifier_node, have error_mark in 
lookup_name_innermost_nonclass_level, at cp/name-lookup.c:4059
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

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           Summary: ICE on invalid code after error
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery
          Severity: normal
          Priority: P2
         Component: objc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23707