[FIR] Remove FirLambdaArgumentExpression

It's not really necessary if the information about if the lambda was a
trailing lambda can be directly saved in FirAnonymousFunctionExpression.

Removing the FIR node uncovered a couple of bugs
(UNINITIALIZED_ENUM_ENTRY, ERROR_IN_CONTRACT_DESCRIPTION) that were
caused by assuming that a lambda is always a trailing lambda.

#KT-66124

analysis/analysis-api/testData/components/callResolver/resolveCall/labeledLambda.kt

@@ -0,0 +1,6 @@
+fun foo(l1: (Int) -> Unit) {
+}
+
+fun test() {
+    <expr>foo label@ {}</expr>
+}

analysis/analysis-api/testData/components/callResolver/resolveCall/labeledLambda.txt

@@ -0,0 +1,28 @@
+KtSuccessCallInfo:
+  call = KtSimpleFunctionCall:
+    isImplicitInvoke = false
+    partiallyAppliedSymbol = KtPartiallyAppliedSymbol:
+      dispatchReceiver = null
+      extensionReceiver = null
+      signature = KtFunctionLikeSignature:
+        receiverType = null
+        returnType = kotlin.Unit
+        symbol = /foo(l1: kotlin.Function1<kotlin.Int, kotlin.Unit>): kotlin.Unit
+        valueParameters = [
+          KtVariableLikeSignature:
+            name = l1
+            receiverType = null
+            returnType = kotlin.Function1<kotlin.Int, kotlin.Unit>
+            symbol = l1: kotlin.Function1<kotlin.Int, kotlin.Unit>
+            callableIdIfNonLocal = null
+        ]
+        callableIdIfNonLocal = /foo
+    typeArgumentsMapping = {}
+    argumentMapping = {
+      label@ {} -> (KtVariableLikeSignature:
+        name = l1
+        receiverType = null
+        returnType = kotlin.Function1<kotlin.Int, kotlin.Unit>
+        symbol = l1: kotlin.Function1<kotlin.Int, kotlin.Unit>
+        callableIdIfNonLocal = null)
+    }

analysis/analysis-api/testData/components/callResolver/resolveCall/labeledLambdaInsideParentheses.kt

@@ -0,0 +1,7 @@
+fun foo() {
+    <expr>bar(2, l@{ it })</expr>
+}
+
+fun bar(a: Int, b: (Int) -> Int) {
+    b(a)
+}

analysis/analysis-api/testData/components/callResolver/resolveCall/labeledLambdaInsideParentheses.txt

@@ -0,0 +1,40 @@
+KtSuccessCallInfo:
+  call = KtSimpleFunctionCall:
+    isImplicitInvoke = false
+    partiallyAppliedSymbol = KtPartiallyAppliedSymbol:
+      dispatchReceiver = null
+      extensionReceiver = null
+      signature = KtFunctionLikeSignature:
+        receiverType = null
+        returnType = kotlin.Unit
+        symbol = /bar(a: kotlin.Int, b: kotlin.Function1<kotlin.Int, kotlin.Int>): kotlin.Unit
+        valueParameters = [
+          KtVariableLikeSignature:
+            name = a
+            receiverType = null
+            returnType = kotlin.Int
+            symbol = a: kotlin.Int
+            callableIdIfNonLocal = null,
+          KtVariableLikeSignature:
+            name = b
+            receiverType = null
+            returnType = kotlin.Function1<kotlin.Int, kotlin.Int>
+            symbol = b: kotlin.Function1<kotlin.Int, kotlin.Int>
+            callableIdIfNonLocal = null
+        ]
+        callableIdIfNonLocal = /bar
+    typeArgumentsMapping = {}
+    argumentMapping = {
+      2 -> (KtVariableLikeSignature:
+        name = a
+        receiverType = null
+        returnType = kotlin.Int
+        symbol = a: kotlin.Int
+        callableIdIfNonLocal = null),
+      l@{ it } -> (KtVariableLikeSignature:
+        name = b
+        receiverType = null
+        returnType = kotlin.Function1<kotlin.Int, kotlin.Int>
+        symbol = b: kotlin.Function1<kotlin.Int, kotlin.Int>
+        callableIdIfNonLocal = null)
+    }