[FIR] Support 4 diagnostics for pairs of modifiers

In particular, this commit includes: * Attempt to abstract access to FirSourceElement via FirModifier * Add more visit functions to DeclarationCheckersDiagnosticComponent * Add messages+factories for 4 modifier-related errors and warnings * Introduce FirModifierChecker
2020-03-27 02:10:26 +03:00
parent 311a91af79
commit b7d8e879a6
42 changed files with 656 additions and 122 deletions
@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 <!INCOMPATIBLE_MODIFIERS!>sealed<!> <!INCOMPATIBLE_MODIFIERS!>data<!> class My(val x: Int) {
    object Your: My(1)
    class His(y: Int): My(y)