[FIR] Fix tests (ARGUMENT_TYPE_MISMATCH instead of INCOMPATIBLE_CANDIDATE)

compiler/testData/diagnostics/tests/smartCasts/variables/ifVarIsChanged.fir.kt

@@ -6,6 +6,6 @@ public fun foo() {
     var s: Any = "not null"
     if (s is String) {
         s = 42
-        <!INAPPLICABLE_CANDIDATE!>bar<!>(s)
+        bar(<!ARGUMENT_TYPE_MISMATCH!>s<!>)
     }
 }

compiler/testData/diagnostics/tests/smartCasts/variables/lambdaBetweenArguments.fir.kt

@@ -6,5 +6,5 @@ fun foo(x: Int, f: () -> Unit, y: Int) {}
 fun bar() {
     var x: Int?
     x = 4
-    <!INAPPLICABLE_CANDIDATE!>foo<!>(x, { x = null; x<!UNSAFE_CALL!>.<!>hashCode() }, x)
+    foo(x, { x = null; x<!UNSAFE_CALL!>.<!>hashCode() }, <!ARGUMENT_TYPE_MISMATCH!>x<!>)
 }

compiler/testData/diagnostics/tests/smartCasts/variables/property.fir.kt

@@ -7,5 +7,5 @@ fun bar(s: String): Int {
 
 fun foo(m: MyClass): Int {
     m.p = "xyz"
-    return <!INAPPLICABLE_CANDIDATE!>bar<!>(m.p)
+    return bar(<!ARGUMENT_TYPE_MISMATCH!>m.p<!>)
 }