VM crashes on RegExp.hasMatch(null).

[whesse]

What steps will reproduce the problem?

1. Create the dart file:
   void main() {
     const RegExp(@­"^\w+$").hasMatch(null);
   }
2. Run it in the VM.

What is the expected output? What do you see instead?
Here is the debug trace of the crash:

../runtime/vm/object.h:2385: error: expected: raw() != null()

Program received signal SIGABRT, Aborted.
0xf7fdf430 in __kernel_vsyscall ()
(gdb) bt

­0 0xf7fdf430 in __kernel_vsyscall ()

­1 0xf7be5921 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64

­2 0xf7be8d52 in abort () at abort.c:92

­3 0x08061cf0 in dart::DynamicAssertionHelper::Fail (this=0xffffc344,

    format=0x81bc935 "expected: %s") at ../runtime/vm/assert.cc:39

­4 0x08056ecc in dart::String::raw_ptr (this=0xffffca04)

    at ../runtime/vm/object.h:2385

­5 0x08056b59 in dart::String::Length (this=0xffffca04)

    at ../runtime/vm/object.h:2287

­6 0x0812441e in dart::GetTwoByteData (str=...)

    at ../runtime/lib/regexp_jsc.cc:20

­7 0x081247b2 in dart::Jscre::Execute (regex=..., str=..., start_index=0)

    at ../runtime/lib/regexp_jsc.cc:114

­8 0x0812432b in dart::DN_HelperJSSyntaxRegExp_ExecuteMatch (

    arguments=0xffffcc24) at ../runtime/lib/regexp.cc:73

­9 0x08124241 in dart::DN_JSSyntaxRegExp_ExecuteMatch (args=0xffffcc24)

    at ../runtime/lib/regexp.cc:68

What version of the product are you using? On what operating system?

Revision 508, Debug_ia32, running on linux.

Please provide any additional information below.

[whesse]

Added Area-VM label.

[DartBot]

This comment was originally written by drfibonacci@google.com

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Added Triaged label.

[turnidge]

Set owner to @a-siva.

[a-siva]

change http://codereview.chromium.org//8363034 fixes this.

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Added Fixed label.