Analyzer: built in identifiers cannot be used as type annotations - compile time error

[DartBot]

This issue was originally filed by zundel@google.com

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This is a co19 test:

/tests/co19/src/Language/07_Classes/07_Classes_A04_t20.dart

class A {
   static abstract method() {}

That's nutty, it shouldn't work, right? Well, co19 specifis a compile time error but doesn't reference a specific part of the spec. However, the analyzer flags it as a static type warning because there is no type named 'abstract' defined. I think the latter is correct, since 'abstract' is a pseudo keyword, not a reserved word.

I just wanted a second pair of eyes on this before I filed a co19 bug.

[DartBot]

This comment was originally written by zundel@google.com

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NM, it is specified in 10.28 that built-in identifiers (pseudo keywords) can't be used as type annotations.

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Added this to the M1 milestone.
Removed Area-Language label.
Added Area-Analyzer label.

[DartBot]

This comment was originally written by zundel@google.com

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Changed the title to: "Analyzer: built in identifiers cannot be used as type annotations - compile time error".

[scheglov]

Set owner to @scheglov.
Added Duplicate label.
Marked as being merged into #3307.