https://issues.dlang.org/show_bug.cgi?id=23057

          Issue ID: 23057
           Summary: importC: dmd segfault on invalid syntax
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: ImportC
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: duser@neet.fi
                CC: duser@neet.fi

these 6 characters:

(a[0])

Program received signal SIGSEGV, Segmentation fault.
0x0000000000744138 in Type::isTypeSArray() (this=0x0) at src/dmd/mtype.d:2703
2703            inout(TypeSArray)     isTypeSArray()     { return ty == Tsarray
   ? cast(typeof(return))this : null; }
(gdb) bt
#0  in Type::isTypeSArray() (this=0x0) at src/dmd/mtype.d:2703
#1  in dmd.cparse.(...).CParser.cparseDeclarator(...).parseDecl(dmd.mtype.Type)
(this=0x7fffffffcc08, t=0x0) at src/dmd/cparse.d:2620
#2  in dmd.cparse.(...).CParser.cparseDeclarator(...).parseDecl(dmd.mtype.Type)
(this=0x7fffffffcc08, t=0x0) at src/dmd/cparse.d:2513
#3  in dmd.cparse.(...).CParser.cparseDeclarator(...) (this=0x7fffffffd0e0,
specifier=..., pident=@0x7fffffffcd40: 0x7ffff7b666b0, t=0x0,
declarator=<incomplete type>) at src/dmd/cparse.d:2666
#4  in
dmd.cparse.(...).CParser.cparseDeclaration(dmd.cparse.CParser!(dmd.astcodegen.ASTCodegen).CParser.LVL)
(this=0x7fffffffd0e0, level=<incomplete type>) at src/dmd/cparse.d:1669
#5  in dmd.cparse.(...).CParser.parseModule() (this=0x7fffffffd0e0) at
src/dmd/cparse.d:128
#6  in dmd.dmodule.Module.parseModule!(dmd.astcodegen.ASTCodegen).parseModule()
(this=0x7ffff7b66430) at src/dmd/dmodule.d:963
#7  in Module::parse() (this=0x7ffff7b66430) at src/dmd/dmodule.d:680
#8  in dmd.mars.tryMain(ulong, const(char)**, ref dmd.globals.Param)
(params=..., argv=0x7fffffffdd28, argc=2) at src/dmd/mars.d:359
#9  in D main (_param_0=...) at src/dmd/mars.d:958

line numbers at commit 035a9efa1c404c90e5c0140f939cb02d02f1cc15

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