[FIR] Don't assume that exit lambda node is target for exceptional exit for inplace lambdas

#KT-39709 Fixed
#KT-43156 Fixed

compiler/testData/diagnostics/testsWithStdLib/contracts/controlflow/flowInlining/nestedTryCatchs.fir.kt

@@ -30,7 +30,7 @@ fun innerTryCatchInitializes() {
             }
         }
         // Can get here only when inlined lambda exited properly, i.e. x is initialized
-        <!UNINITIALIZED_VARIABLE!>x<!>.inc()
+        x.inc()
         outerComputation()
 
     } catch (e: java.lang.Exception) {
@@ -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.fir.kt

@@ -26,7 +26,7 @@ fun throwIfNotCalled() {
     }
     // x *is* initialized here, because if myRun was never called -> exception
     // were thrown and control flow wouldn't be here
-    println(<!UNINITIALIZED_VARIABLE!>x<!>)
+    println(x)
 }
 
 fun catchThrowIfNotCalled() {
@@ -45,4 +45,4 @@ fun catchThrowIfNotCalled() {
 
     // x *isn't* initialized here!
     println(<!UNINITIALIZED_VARIABLE!>x<!>)
-}
+}

compiler/testData/diagnostics/testsWithStdLib/contracts/controlflow/flowInlining/tryCatch.fir.kt

@@ -43,7 +43,7 @@ fun possibleReassignmentInTryCatch() {
         }
         x.inc()
     }
-    <!UNINITIALIZED_VARIABLE!>x<!>.inc()
+    x.inc()
 }
 
 fun tryCatchOuter() {