Cannot find private core lib source

[stevemessick]

Running the standlone program in Debug mode resulted in failure to find source code for core library.

foo(u) { u.add(123); }

void main() {
 foo(new List<String>());
}

I was trying to provoke a type error when crossing into corelib.
DartEditor then opened a window named: "GrowableObjectArray.ad()" with the content: Source not found.

Finding the corelib source should be easy.
////////////////////////////////////////////////////////////////////////////////////
Editor: 8641
OS: Mac OS X - x86_64 (10.6.8)
JVM: 1.6.0_31

SDK installed: true
Dartium installed: true
////////////////////////////////////////////////////////////////////////////////////
!SESSION 2012-06-14 07:46:47.706 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_31
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments: -keyring ${user.home}/.eclipse_keyring -showlocation
Command-line arguments: -os macosx -ws cocoa -arch x86_64 -consoleLog -data ../../../workspace -keyring ${user.home}/.eclipse_keyring -showlocation

!ENTRY com.google.dart.tools.debug.core 4 0 2012-06-14 09:21:54.154
!MESSAGE Connection reset
!STACK 0
java.net.SocketException: Connection reset
       at java.net.SocketInputStream.read(SocketInputStream.java:168)
       at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
       at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
       at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
       at sun.nio.cs.StreamDecoder.read0(StreamDecoder.java:107)
       at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:93)
       at java.io.InputStreamReader.read(InputStreamReader.java:151)
       at com.google.dart.tools.debug.core.server.VmConnection.readJson(VmConnection.java:621)
       at com.google.dart.tools.debug.core.server.VmConnection.processVmEvents(VmConnection.java:605)
       at com.google.dart.tools.debug.core.server.VmConnection.access$1(VmConnection.java:602)
       at com.google.dart.tools.debug.core.server.VmConnection$1.run(VmConnection.java:106)
       at java.lang.Thread.run(Thread.java:680)

!ENTRY com.google.dart.tools.debug.core 4 0 2012-06-14 09:24:52.268
!MESSAGE Connection reset
!STACK 0
java.net.SocketException: Connection reset
       at java.net.SocketInputStream.read(SocketInputStream.java:168)
       at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
       at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
       at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
       at sun.nio.cs.StreamDecoder.read0(StreamDecoder.java:107)
       at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:93)
       at java.io.InputStreamReader.read(InputStreamReader.java:151)
       at com.google.dart.tools.debug.core.server.VmConnection.readJson(VmConnection.java:621)
       at com.google.dart.tools.debug.core.server.VmConnection.processVmEvents(VmConnection.java:605)
       at com.google.dart.tools.debug.core.server.VmConnection.access$1(VmConnection.java:602)
       at com.google.dart.tools.debug.core.server.VmConnection$1.run(VmConnection.java:106)
       at java.lang.Thread.run(Thread.java:680)

[devoncarew]

Added Duplicate label.
Marked as being merged into #3686.