[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/when/kt10439.kt

@@ -14,12 +14,12 @@
 fun foo(x: Int) = x
 
 fun test0(flag: Boolean) {
-    foo(<!NI;TYPE_MISMATCH!>if (flag) <!OI;CONSTANT_EXPECTED_TYPE_MISMATCH!>true<!> else <!OI;TYPE_MISMATCH!>""<!><!>)
+    foo(<!TYPE_MISMATCH{NI}!>if (flag) <!CONSTANT_EXPECTED_TYPE_MISMATCH{OI}!>true<!> else <!TYPE_MISMATCH{OI}!>""<!><!>)
 }
 
 fun test1(flag: Boolean) {
-    foo(<!NI;TYPE_MISMATCH!>when (flag) {
-        true -> <!OI;CONSTANT_EXPECTED_TYPE_MISMATCH!>true<!>
-        else -> <!OI;TYPE_MISMATCH!>""<!>
+    foo(<!TYPE_MISMATCH{NI}!>when (flag) {
+        true -> <!CONSTANT_EXPECTED_TYPE_MISMATCH{OI}!>true<!>
+        else -> <!TYPE_MISMATCH{OI}!>""<!>
     }<!>)
 }