[FIR] Pass bounds from original type to fully expanded ^KT-40203 Fixed

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/CreateFreshTypeVariableSubstitutorStage.kt

@@ -6,17 +6,15 @@
 package org.jetbrains.kotlin.fir.resolve.calls
 
 import org.jetbrains.kotlin.fir.FirSession
-import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
-import org.jetbrains.kotlin.fir.declarations.FirTypeParameterRef
-import org.jetbrains.kotlin.fir.declarations.FirTypeParameterRefsOwner
+import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.renderWithType
 import org.jetbrains.kotlin.fir.resolve.fullyExpandedType
 import org.jetbrains.kotlin.fir.resolve.inference.ConeTypeParameterBasedTypeVariable
-import org.jetbrains.kotlin.fir.resolve.inference.inferenceComponents
 import org.jetbrains.kotlin.fir.resolve.inference.model.ConeDeclaredUpperBoundConstraintPosition
 import org.jetbrains.kotlin.fir.resolve.inference.model.ConeExplicitTypeParameterConstraintPosition
 import org.jetbrains.kotlin.fir.resolve.substitution.ConeSubstitutor
 import org.jetbrains.kotlin.fir.resolve.substitution.substitutorByMap
+import org.jetbrains.kotlin.fir.scopes.impl.toConeType
 import org.jetbrains.kotlin.fir.symbols.ConeTypeParameterLookupTag
 import org.jetbrains.kotlin.fir.symbols.ensureResolved
 import org.jetbrains.kotlin.fir.typeContext
@@ -150,12 +148,34 @@ private fun createToFreshVariableSubstitutorAndAddInitialConstraints(
     for (index in typeParameters.indices) {
         val typeParameter = typeParameters[index]
         val freshVariable = freshTypeVariables[index]
-        //val position = DeclaredUpperBoundConstraintPosition(typeParameter)
 
-        for (upperBound in typeParameter.symbol.fir.bounds) {
+        val parameterSymbolFromExpandedClass = typeParameter.symbol.fir.getTypeParameterFromExpandedClass(index, session)
+
+        for (upperBound in parameterSymbolFromExpandedClass.bounds) {
             freshVariable.addSubtypeConstraint(upperBound.coneType/*, position*/)
         }
     }
 
     return toFreshVariables to freshTypeVariables
 }
+
+private fun FirTypeParameter.getTypeParameterFromExpandedClass(index: Int, session: FirSession): FirTypeParameter {
+    val containingDeclaration = containingDeclarationSymbol?.fir
+    if (containingDeclaration is FirRegularClass) {
+        return containingDeclaration.typeParameters.elementAtOrNull(index)?.symbol?.fir ?: this
+    } else if (containingDeclaration is FirTypeAlias) {
+        val typeParameterConeType = toConeType()
+        val expandedConeType = containingDeclaration.expandedTypeRef.coneType
+        val typeArgumentIndex = expandedConeType.typeArguments.indexOfFirst { it.type == typeParameterConeType }
+        val expandedTypeFir = expandedConeType.toSymbol(session)?.fir
+        if (expandedTypeFir is FirTypeParameterRefsOwner) {
+            val typeParameterFir = expandedTypeFir.typeParameters.elementAtOrNull(typeArgumentIndex)?.symbol?.fir ?: return this
+            if (expandedTypeFir is FirTypeAlias) {
+                return typeParameterFir.getTypeParameterFromExpandedClass(typeArgumentIndex, session)
+            }
+            return typeParameterFir
+        }
+    }
+
+    return this
+}

compiler/testData/diagnostics/tests/typealias/boundViolationInTypeAliasConstructor.fir.kt

@@ -4,8 +4,8 @@ typealias N<T> = Num<T>
 typealias N2<T> = N<T>
 
 val x1 = Num<<!UPPER_BOUND_VIOLATED!>String<!>>(<!ARGUMENT_TYPE_MISMATCH!>""<!>)
-val x2 = N<<!UPPER_BOUND_VIOLATED!>String<!>>("")
-val x3 = N2<<!UPPER_BOUND_VIOLATED!>String<!>>("")
+val x2 = N<<!UPPER_BOUND_VIOLATED!>String<!>>(<!ARGUMENT_TYPE_MISMATCH!>""<!>)
+val x3 = N2<<!UPPER_BOUND_VIOLATED!>String<!>>(<!ARGUMENT_TYPE_MISMATCH!>""<!>)
 
 class TColl<T, C : Collection<T>>
 

compiler/testData/diagnostics/tests/typealias/typeAliasConstructorTypeArgumentsInference.fir.kt

@@ -4,7 +4,7 @@ class Num<Tn : Number>(val x: Tn)
 typealias N<T> = Num<T>
 
 val test0 = N(1)
-val test1 = N("1")
+val test1 = N(<!ARGUMENT_TYPE_MISMATCH!>"1"<!>)
 
 
 class Cons<T>(val head: T, val tail: Cons<T>?)

compiler/testData/diagnostics/tests/typealias/typeAliasConstructorTypeArgumentsInferenceWithNestedCalls.fir.kt

@@ -14,6 +14,6 @@ typealias C<T> = Cons<T>
 typealias C2<T> = MapLike<T>
 
 val test1 = C(1, C(2, null))
-val test2 = C(1, C("", null))
-val test23 = C2(if (true) 1 else null)
-val test234 = C2(C2(if (true) 1 else null))
+val test2 = C(1, C(<!ARGUMENT_TYPE_MISMATCH!>""<!>, null))
+val test23 = C2(<!ARGUMENT_TYPE_MISMATCH!>if (true) 1 else null<!>)
+val test234 = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>C2<!>(C2(<!ARGUMENT_TYPE_MISMATCH!>if (true) 1 else null<!>))

compiler/testData/diagnostics/tests/typealias/wrongNumberOfArgumentsInTypeAliasConstructor.fir.kt

@@ -28,14 +28,14 @@ val test3pr = <!INAPPLICABLE_CANDIDATE!>P2<!><String, Int, Int>(1, "")
 class Num<T : Number>(val x: T)
 typealias N<T> = Num<T>
 
-val testN0 = N("")
+val testN0 = N(<!ARGUMENT_TYPE_MISMATCH!>""<!>)
 val testN1 = N<Int>(1)
-val testN1a = N<<!UPPER_BOUND_VIOLATED!>String<!>>("")
+val testN1a = N<<!UPPER_BOUND_VIOLATED!>String<!>>(<!ARGUMENT_TYPE_MISMATCH!>""<!>)
 val testN2 = <!INAPPLICABLE_CANDIDATE!>N<!><Int, Int>(1)
 
 class MyPair<T1 : CharSequence, T2 : Number>(val string: T1, val number: T2)
 typealias MP<T1> = MyPair<String, T1>
 
 val testMP0 = MP<Int>("", 1)
-val testMP1 = MP(<!ARGUMENT_TYPE_MISMATCH!>1<!>, "")
-val testMP2 = MP<String>("", "")
+val testMP1 = MP(<!ARGUMENT_TYPE_MISMATCH!>1<!>, <!ARGUMENT_TYPE_MISMATCH!>""<!>)
+val testMP2 = MP<String>(<!ARGUMENT_TYPE_MISMATCH!>""<!>, <!ARGUMENT_TYPE_MISMATCH!>""<!>)