Local function should not be static

[dgrove]

(This is a clone of issue #965, which appears on both dartc and frog)
What steps will reproduce the problem?
Run the following test:
f() {
  static localFunction() {}
}

main() {
  f();
}

What is the expected output? What do you see instead?
Expected: compile-time error
Actual: static warning: no such type "static"

Please provide any additional information below.
The Language Specification in the section 6.1 states: "It is a compile-time error to preface a function declaration with the built-in
identifier static."

[jmesserly]

Removed Priority-Medium label.
Added Priority-Low label.

[anders-sandholm]

Removed Area-Frog label.
Added Area-Dart2JS, FromAreaFrog labels.

[kasperl]

For this code we report three errors. We should clean that up and make the error message better.

warning: cannot resolve type static
  static f() => 42;
  ^^^^^^^
warning: cannot resolve type static
  static f() => 42;
  ^^^^^^^
error: cannot resolve f
  print(f());

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main() {
  static f() => 42;
  print(f());
}

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Set owner to @karlklose.
Removed Priority-Low, FromAreaFrog labels.
Added Priority-Medium, Accepted labels.

[kasperl]

Added this to the Later milestone.

[kasperl]

Removed this from the Later milestone.

[kasperl]

Added this to the M2 milestone.

[kasperl]

Removed this from the M2 milestone.
Added this to the M3 milestone.

[anders-sandholm]

Removed this from the M3 milestone.
Added this to the M4 milestone.

[karlklose]

Fixed in r19671.

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Added Fixed label.