[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/testsWithStdLib/contracts/controlflow/flowInlining/nestedTryCatchs.kt

@@ -44,4 +44,4 @@ fun innerTryCatchInitializes() {
     }
     // Here x=I because outer try-catch either exited normally (x=I) or catched exception (x=I, with reassingment, though)
     x.inc()
-}
+}

compiler/testData/diagnostics/testsWithStdLib/contracts/controlflow/flowInlining/throwIfNotCalled.kt

@@ -45,4 +45,4 @@ fun catchThrowIfNotCalled() {
 
     // x *isn't* initialized here!
     println(<!UNINITIALIZED_VARIABLE!>x<!>)
-}
+}