[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/CommaInWhenConditionWithoutArgument.fir.kt

@@ -1,3 +1,10 @@
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-313
+ * PRIMARY LINKS: expressions, when-expression -> paragraph 2 -> sentence 1
+ * expressions, when-expression -> paragraph 5 -> sentence 1
+ */
 fun foo(x: Int, y: Int): Int =
         when {
             x > 0, y > 0,<!SYNTAX!>,<!> x < 0 -> 1
@@ -8,4 +15,4 @@ fun bar(x: Int): Int =
         when (x) {
             0 -> 0
             else -> 1
-        }
+        }