[Fir2IR] Don't use FIR f/o builder when IR f/o builder is enabled

Before this commit, fir f/o builder was inconsistently
disabled in some places, while it should work only for lazy declarations

Attempt to use it for non-lazy declarations, without maintaining
invariant, that it would also be used for super classes
led to unpredictable results.

This commit introduces opt-in, and marks all related API to three types
* Propagate error to user
* Fine to use, as it's checked if ir f/o builder is enabled
* Fine to use, as it is definitely a lazy class.

Several cases of missing checks was fixed.

^KT-65707

compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java

@@ -16144,6 +16144,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             runTest("compiler/testData/codegen/box/fakeOverride/kt65695.kt");
         }
 
+        @TestMetadata("kt65707.kt")
+        public void testKt65707() throws Exception {
+            runTest("compiler/testData/codegen/box/fakeOverride/kt65707.kt");
+        }
+
         @TestMetadata("methodOfAnyFromInterface.kt")
         public void testMethodOfAnyFromInterface() throws Exception {
             runTest("compiler/testData/codegen/box/fakeOverride/methodOfAnyFromInterface.kt");