const Set.from() is compiled by dartc, but has incorrect behavior

[DartBot]

This issue was originally filed by hjfre...@google.com

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What steps will reproduce the problem?

1. Go to dartboard
2. Run the following:

main() {
 Set<String> trueSet = const Set.from(const ['true']);
 Set<String> falseSet = const Set.from(const ['false']);

 for (var x in trueSet)
   print(x);
 for (var x in falseSet)
   print(x);
}

What is the expected output?

Ideally:

true
false

Or, a compile error because Set apparently has no const constructor.

What do you see instead?

A clean compile, outputting:

true
true

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

Not on the same machine I was, but whatever trunk was on 2011/10/30. Linux x64, with a 32-bit build.

Please provide any additional information below.

floitsch says:

This is a bug in DartC. The VM correctly reports that the class Set doesn't have a const-constructor:
===
dart$ out/Release_ia32/dart_bin /tmp/bug.dart
'/tmp/bug.dart': Error: line 2 pos 54: 'const' requires const constructor: 'HashSetImplementation.from'
 Set<String> trueSet = const Set.from(const ['true']);

[floitschG]

Added Area-Compiler, Triaged labels.

[DartBot]

This comment was originally written by mmendez@google.com

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Set owner to zundel@google.com.
Added Accepted label.

[DartBot]

This comment was originally written by zundel@google.com

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http://codereview.chromium.org/8624001/

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Added Started label.

[DartBot]

This comment was originally written by zundel@google.com

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r1751

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Added Fixed label.