Added this to the M2 milestone.

Fixed in https://codereview.chromium.org/11092101/.

I'm keeping this bug open to remind myself to write a test of this.

Set owner to @peter-ahe-google.
Added Started label.

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Added this to the M2 milestone.

Removed Priority-Medium label.
Added Priority-High label.

Test added in r14338.

Added Fixed label.

Actually, I never landed CL 11092101.

Added Started label.

So naturally the test I added in r14338 isn't worth the bits it is printed on.

Removed this from the M2 milestone.
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Added this to the M4 milestone.

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Added this to the M5 milestone.

Added TriageForM5 label.

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Added this to the Later milestone.
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Changed the title to: "Missing test: Bad error-message for missing closing parenthesis".

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Added Oldschool-Milestone-Later label.

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I think this can be closed. There are UNMATCHED_TOKEN tests in sdk/lib/_internal/compiler/implementation/warnings.dart . The error from dart2js looks good:

$ dart2js issue-5829.dart
issue-5829.dart:5:4:
Error: Can't find ')' to match '('.
foo(x { // <= missing closing ")"
   ^
Error: Compilation failed.

Thanks.

Fix seems to have been committed with r15386.

Added Fixed label.

Verified fixed in 79a8654