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KT-22274 report warning on labels that can't be referenced

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Labels are meaningful only if they can be referenced by 'break',
'continue', or 'return' expressions.
This commit is contained in:
Dmitry Petrov
2018-07-24 15:58:10 +03:00
parent 6fb913a463
commit df6d4f358a
28 changed files with 127 additions and 42 deletions
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compiler/testData/diagnostics/tests/Underscore.kt
Vendored
+1 -1
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@@ -21,7 +21,7 @@ fun <!UNDERSCORE_IS_RESERVED!>__<!>(<!UNDERSCORE_IS_RESERVED!>___<!>: Int, y: <!
fun localFun(<!UNDERSCORE_IS_RESERVED!>_<!>: String) = 1
<!UNDERSCORE_IS_RESERVED!>__<!>@ return if (y != null) <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>__<!>(<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>____<!>, y) else <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>__<!>(`_`, <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>______<!>)
<!REDUNDANT_LABEL_WARNING!><!UNDERSCORE_IS_RESERVED!>__<!>@<!> return if (y != null) <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>__<!>(<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>____<!>, y) else <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>__<!>(`_`, <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>______<!>)
}