[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/operatorsOverloading/kt11300.kt

@@ -7,7 +7,7 @@ class A {
 
 fun main() {
     val a = A()
-    <!OPERATOR_MODIFIER_REQUIRED!>a<!NI;NO_SET_METHOD!>[1]<!><!>++
-    <!OPERATOR_MODIFIER_REQUIRED!>a<!NI;NO_SET_METHOD!>[1]<!><!> += 3
+    <!OPERATOR_MODIFIER_REQUIRED!>a<!NO_SET_METHOD{NI}!>[1]<!><!>++
+    <!OPERATOR_MODIFIER_REQUIRED!>a<!NO_SET_METHOD{NI}!>[1]<!><!> += 3
     <!OPERATOR_MODIFIER_REQUIRED!>a[1]<!> = a[1] + 3
-}
+}