[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/fir/analysis-tests/testData/resolve/samConversions/samWithEquals.fir.txt

@@ -0,0 +1,18 @@
+FILE: main.kt
+    public abstract interface TypeConstructor : R|kotlin/Any| {
+        public abstract val x: R|kotlin/String|
+            public get(): R|kotlin/String|
+
+    }
+    public final fun main(): R|kotlin/Unit| {
+        Q|OverridingUtil|.R|/OverridingUtil.createWithEqualityAxioms|(<L> = l1@fun <anonymous>(c1: R|ft<@FlexibleNullability TypeConstructor, TypeConstructor?>!|, c2: R|ft<@FlexibleNullability TypeConstructor, TypeConstructor?>!|): R|kotlin/Boolean| {
+            when () {
+                ==(R|<local>/c1|.R|/TypeConstructor.x|, R|<local>/c2|.R|/TypeConstructor.x|) ->  {
+                    ^@l1 Boolean(true)
+                }
+            }
+
+            ^ Boolean(false)
+        }
+        )
+    }