Prevent accidental breakpoints in non-debuggable code

Prevent accidental breakpoints in non-debuggable code

Prevent setting accidental breakpoints in implicit getter
and setter functions, and in initializer expressions that
are inlined in field declarations.

R=regis@google.com

Committed: https://code.google.com/p/dart/source/detail?r=32183

[hausner, 2014-01-30 23:18:13]

So you don't get bored :)

[regis, 2014-01-30 23:30:28]

On 2014/01/30 23:18:13, hausner wrote:
> So you don't get bored :)

Trying to set breakpoints on my dream loop? Nah, generics already dropped bombs.
No time to get bored.

[regis, 2014-01-30 23:30:42]

LGTM

[hausner, 2014-01-30 23:38:38]

Committed patchset #1 manually as r32183 (presubmit successful).