FIR: Adjust test data. FakeOverride -> SubssitutionOverride

compiler/fir/analysis-tests/testData/resolve/arguments/extensionLambdaInDefaultArgument.txt

@@ -3,5 +3,5 @@ FILE: extensionLambdaInDefaultArgument.kt
         ^ this@R|special/anonymous|.R|kotlin/String.length|
     }
     ): R|kotlin/Int| {
-        ^test R|<local>/f|.R|FakeOverride<kotlin/Function1.invoke: R|kotlin/Int|>|(String())
+        ^test R|<local>/f|.R|SubstitutionOverride<kotlin/Function1.invoke: R|kotlin/Int|>|(String())
     }

compiler/fir/analysis-tests/testData/resolve/arguments/tryInLambda.txt

@@ -1,6 +1,6 @@
 FILE: tryInLambda.kt
     public final fun <T> myRun(block: R|() -> T|): R|T| {
-        ^myRun R|<local>/block|.R|FakeOverride<kotlin/Function0.invoke: R|T|>|()
+        ^myRun R|<local>/block|.R|SubstitutionOverride<kotlin/Function0.invoke: R|T|>|()
     }
     public final fun foo(): R|kotlin/Unit| {
     }