[TD] Update diagnostics test data due to new test runners

Update includes:
- Changing syntax of `OI/`NI` tags from `<!NI;TAG!>` to `<!TAG{NI}!>`
- Fix some incorrect directives
- Change order of diagnostics in some places
- Remove ignored diagnostics from FIR test data (previously `DIAGNOSTICS` didn't work)
- Update FIR dumps in some places and add `FIR_IDENTICAL` if needed
- Replace all JAVAC_SKIP with SKIP_JAVAC directive

compiler/testData/diagnostics/tests/controlFlowAnalysis/UninitializedOrReassignedVariables.kt

@@ -241,7 +241,7 @@ class Outer() {
 }
 
 class ForwardAccessToBackingField() { //kt-147
-    val a = <!NI;DEBUG_INFO_MISSING_UNRESOLVED, OI;UNINITIALIZED_VARIABLE, TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM!>a<!> // error
+    val a = <!DEBUG_INFO_MISSING_UNRESOLVED{NI}, TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM, UNINITIALIZED_VARIABLE{OI}!>a<!> // error
     val b = <!UNINITIALIZED_VARIABLE!>c<!> // error
     val c = 1
 }