Add FIR enhancement tests, fix some exceptions / problems around them

Test data and tests themselves are based on
compiler/testData/loadJava/compiledJava

compiler/testData/loadJava/compiledJava/sam/adapters/AmbiguousAdapters.fir.txt

@@ -0,0 +1,6 @@
+public open class AmbiguousAdapters : R|java/lang/Object| {
+    public open operator function foo(r: R|ft<java/lang/Runnable, java/lang/Runnable?>|!): R|kotlin/Unit|
+
+    public open operator function foo(c: R|ft<java/io/Closeable, java/io/Closeable?>|!): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/Basic.fir.txt

@@ -0,0 +1,4 @@
+public open class Basic : R|java/lang/Object| {
+    public open operator function foo(r: R|ft<java/lang/Runnable, java/lang/Runnable?>|!): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/Constructor.fir.txt

@@ -0,0 +1,2 @@
+public open class Constructor : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/ConstructorWithAnnotations.fir.txt

@@ -0,0 +1,2 @@
+public open class ConstructorWithAnnotations : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/DeepSamLoop.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface DeepSamLoop : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/NoSamForClassTypeParameter.java

@@ -1,3 +1,4 @@
+// SKIP_IN_FIR_TEST
 package test;
 
 class NoSamForTypeParameter<K extends Runnable> {

compiler/testData/loadJava/compiledJava/sam/adapters/NoSamForMethodTypeParameter.java

@@ -1,3 +1,4 @@
+// SKIP_IN_FIR_TEST
 package test;
 
 class NoSamForTypeParameter {

compiler/testData/loadJava/compiledJava/sam/adapters/NonTrivialFunctionType.fir.txt

@@ -0,0 +1,10 @@
+public open class NonTrivialFunctionType : R|java/lang/Object| {
+    public open operator function foo(filenameFilter: R|ft<java/io/FilenameFilter, java/io/FilenameFilter?>|!): R|kotlin/Unit|
+
+    public open operator function foo(comparator: R|ft<java/util/Comparator<ft<java/lang/String, java/lang/String?>>, java/util/Comparator<ft<java/lang/String, java/lang/String?>>>|): R|kotlin/Unit|
+
+    public open operator function wildcardUnbound(comparator: R|ft<java/util/Comparator<class error: Unexpected type argument: JavaWildcardTypeImpl: PsiType:?>, java/util/Comparator<class error: Unexpected type argument: JavaWildcardTypeImpl: PsiType:?>?>|!): R|kotlin/Unit|
+
+    public open operator function wildcardBound(comparator: R|ft<java/util/Comparator<class error: Unexpected type argument: JavaWildcardTypeImpl: PsiType:? super CharSequence>, java/util/Comparator<class error: Unexpected type argument: JavaWildcardTypeImpl: PsiType:? super CharSequence>?>|!): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/PrivateSamAdapter.fir.txt

@@ -0,0 +1,4 @@
+public open class PrivateSamAdapter : R|java/lang/Object| {
+    private open operator function samAdapter(r: R|ft<test/PrivateSamAdapter.SamInterface, test/PrivateSamAdapter.SamInterface?>|!): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/SelfAsParameter.fir.txt

@@ -0,0 +1,4 @@
+public abstract interface SelfAsParameter : R|java/lang/Object| {
+    public abstract operator function foo(p: R|ft<test/SelfAsParameter, test/SelfAsParameter?>|!): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/SeveralSamParameters.fir.txt

@@ -0,0 +1,2 @@
+public open class SeveralSamParameters : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/TypeParameterOfClass.fir.txt

@@ -0,0 +1,4 @@
+<T> public open class TypeParameterOfClass : R|java/lang/Object| {
+    public open operator function foo(comparator: R|ft<java/util/Comparator<ft<T, T?>>, java/util/Comparator<ft<T, T?>>>|): R|kotlin/Unit|
+
+}

compiler/testData/loadJava/compiledJava/sam/adapters/TypeParameterOfMethod.fir.txt

@@ -0,0 +1,2 @@
+public open class TypeParameterOfMethod : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/TypeParameterOfOuterClass.fir.txt

@@ -0,0 +1,2 @@
+<T> public open class TypeParameterOfOuterClass : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/AdapterDoesntOverrideDeclaration.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface AdapterDoesntOverrideDeclaration : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedAdapterAndDeclaration.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedAdapterAndDeclaration : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedAmbiguousAdapters.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedAmbiguousAdapters : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedAndOverriddenAmbiguousAdapters.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedAndOverriddenAmbiguousAdapters : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedOverridden.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedOverridden : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedOverriddenAdapter.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedOverriddenAdapter : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedSameAdapters.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedSameAdapters : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedSameAdaptersWithSubstitution.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedSameAdaptersWithSubstitution : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/InheritedSimple.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface InheritedSimple : R|java/lang/Object| {
+}

compiler/testData/loadJava/compiledJava/sam/adapters/inheritance/OverriddenAmbiguousAdapters.fir.txt

@@ -0,0 +1,2 @@
+public abstract interface OverriddenAmbiguousAdapters : R|java/lang/Object| {
+}