Fix most unchecked/deprecation javac warnings in compiler modules

compiler/backend/src/org/jetbrains/kotlin/codegen/AnnotationCodegen.java

@@ -361,7 +361,7 @@ public abstract class AnnotationCodegen {
             @NotNull ConstantValue<?> value,
             @NotNull AnnotationVisitor annotationVisitor
     ) {
-        AnnotationArgumentVisitor argumentVisitor = new AnnotationArgumentVisitor<Void, Void>() {
+        AnnotationArgumentVisitor<Void, Void> argumentVisitor = new AnnotationArgumentVisitor<Void, Void>() {
             @Override
             public Void visitLongValue(@NotNull LongValue value, Void data) {
                 return visitSimpleValue(value);

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -2069,7 +2069,7 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
         CallableMethod callableGetter = null;
         CallableMethod callableSetter = null;
 
-        CodegenContext backingFieldContext = getBackingFieldContext(fieldAccessorKind, containingDeclaration);
+        CodegenContext<?> backingFieldContext = getBackingFieldContext(fieldAccessorKind, containingDeclaration);
         boolean isPrivateProperty =
                 fieldAccessorKind != AccessorKind.NORMAL &&
                 (AsmUtil.getVisibilityForBackingField(propertyDescriptor, isDelegatedProperty) & ACC_PRIVATE) != 0;

compiler/backend/src/org/jetbrains/kotlin/codegen/MemberCodegen.java

@@ -73,7 +73,7 @@ public abstract class MemberCodegen<T extends KtPureElement/* TODO: & KtDeclarat
     public final GenerationState state;
 
     protected final T element;
-    protected final FieldOwnerContext context;
+    protected final FieldOwnerContext<?> context;
 
     public final ClassBuilder v;
     public final FunctionCodegen functionCodegen;

compiler/backend/src/org/jetbrains/kotlin/codegen/SamCodegenUtil.java

@@ -25,15 +25,16 @@ import org.jetbrains.kotlin.synthetic.SamAdapterExtensionFunctionDescriptor;
 
 public class SamCodegenUtil {
     @Nullable
+    @SuppressWarnings("unchecked")
     public static FunctionDescriptor getOriginalIfSamAdapter(@NotNull FunctionDescriptor fun) {
         if (fun instanceof SamAdapterDescriptor<?> || fun instanceof SamAdapterExtensionFunctionDescriptor) {
-            //noinspection unchecked
             return ((SyntheticMemberDescriptor<FunctionDescriptor>) fun).getBaseDescriptorForSynthetic();
         }
 
         return null;
     }
 
+    @SuppressWarnings("unchecked")
     public static <T extends FunctionDescriptor> T resolveSamAdapter(@NotNull T descriptor) {
         FunctionDescriptor original = getOriginalIfSamAdapter(descriptor);
         return original != null ? (T) original : descriptor;

compiler/backend/src/org/jetbrains/kotlin/codegen/context/CodegenContext.java

@@ -413,7 +413,7 @@ public abstract class CodegenContext<T extends DeclarationDescriptor> {
         return getAccessor(propertyDescriptor, AccessorKind.NORMAL, null, superCallTarget, getterAccessorRequired, setterAccessorRequired);
     }
 
-
+    @SuppressWarnings("unchecked")
     public  <D extends CallableMemberDescriptor> D getAccessorForJvmDefaultCompatibility(@NotNull D descriptor) {
         if (descriptor instanceof PropertyAccessorDescriptor) {
             PropertyDescriptor propertyAccessor = getAccessor(((PropertyAccessorDescriptor) descriptor).getCorrespondingProperty(),