[FIR] Unify diagnostic message in FIR dump for syntax error between PSI and LT

analysis/analysis-api/testData/symbols/symbolByPsi/valueParameters/parameterNotFunctionalType.pretty.txt

@@ -1,3 +1,3 @@
-fun f(p: (kotlin.Int, ERROR_TYPE(Symbol not found for p2)) -> ERROR(Unwrapped type is null), `<no name provided>`: ERROR(No type for parameter))
+fun f(p: (kotlin.Int, ERROR_TYPE(Symbol not found for p2)) -> ERROR(Incomplete code), `<no name provided>`: ERROR(No type for parameter))
 
 fun `<no name provided>`()

analysis/analysis-api/testData/symbols/symbolByPsi/valueParameters/parameterNotFunctionalType.txt

@@ -50,9 +50,9 @@ KtFunctionSymbol:
             type: ERROR_TYPE
           KtTypeErrorType:
             annotationsList: []
-            type: ERROR CLASS: Unwrapped type is null
+            type: ERROR CLASS: Incomplete code
         ]
-        type: kotlin/Function2<kotlin/Int, ERROR CLASS: Symbol not found for p2, ERROR CLASS: Unwrapped type is null>
+        type: kotlin/Function2<kotlin/Int, ERROR CLASS: Symbol not found for p2, ERROR CLASS: Incomplete code>
       symbolKind: LOCAL
       typeParameters: []
       getContainingModule: KtSourceModule "Sources of main"
@@ -81,4 +81,4 @@ KtFunctionSymbol:
   ]
   visibility: Public
   getContainingModule: KtSourceModule "Sources of main"
-  deprecationStatus: null
+  deprecationStatus: null

compiler/fir/analysis-tests/testData/resolve/problems/invalidCode.fir.txt

@@ -63,9 +63,9 @@ FILE: e.kt
             public get(): <ERROR TYPE REF: Expression 'bar' of type 'ERROR CLASS: cycle' cannot be invoked as a function>
             public set(value: <ERROR TYPE REF: Expression 'bar' of type 'ERROR CLASS: cycle' cannot be invoked as a function>): R|kotlin/Unit|
 
-        public final class EmptyContinuation : R|e/A<ERROR CLASS: Unwrapped type is null>| {
+        public final class EmptyContinuation : R|e/A<ERROR CLASS: Incomplete code>| {
             public constructor(): R|e/A.EmptyContinuation| {
-                super<R|e/A<ERROR CLASS: Unwrapped type is null>|>()
+                super<R|e/A<ERROR CLASS: Incomplete code>|>()
             }
 
         }

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/RawFirBuilder.kt

@@ -1969,7 +1969,7 @@ open class RawFirBuilder(
                 }
                 null -> FirErrorTypeRefBuilder().apply {
                     this.source = source
-                    diagnostic = ConeSimpleDiagnostic("Unwrapped type is null", DiagnosticKind.Syntax)
+                    diagnostic = ConeSimpleDiagnostic("Incomplete code", DiagnosticKind.Syntax)
                 }
                 else -> throw AssertionError("Unexpected type element: ${unwrappedElement.text}")
             }