FIR IDE: rework KtCall to work with error cals

idea/testData/resolve/references/invoke/lambdaNoParIncorrectVararg.kt

@@ -1,5 +1,3 @@
-// IGNORE_FIR
-
 class Foo {
   fun invoke(vararg a: Any) {}
 }

idea/testData/resolve/references/invoke/lambdaNoParLabelIncorrectVararg.kt

@@ -1,5 +1,3 @@
-// IGNORE_FIR
-
 class Foo {
   fun invoke(vararg a: Any) {}
 }

idea/testData/resolve/references/invoke/lambdaNoParRCurlyIncorrectVararg.kt

@@ -1,5 +1,3 @@
-// IGNORE_FIR
-
 class Foo {
   fun invoke(vararg a: Any) {}
 }

idea/testData/resolve/references/invoke/nonemptyLambdaRParIncorrectVararg.kt

@@ -1,5 +1,3 @@
-// IGNORE_FIR
-
 class Foo {
   fun invoke(vararg a: Any) {}
 }