Added @ExpectLoadErrors annotations to test data.

Also, fixed syntax error in AddNullabilitySameJavaType.

compiler/testData/loadJava/kotlinSignature/propagation/return/AddNullabilityJavaSubtype.java

@@ -2,6 +2,7 @@ package test;
 
 import org.jetbrains.annotations.NotNull;
 import jet.runtime.typeinfo.KotlinSignature;
+import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError;
 
 public interface AddNullabilityJavaSubtype {
 
@@ -11,6 +12,7 @@ public interface AddNullabilityJavaSubtype {
     }
 
     public interface Sub extends Super {
+        @ExpectLoadError("Alternative signature has 2 syntax errors, first is at 10: Expecting '(")
         @KotlinSignature("fun String? foo()")
         String foo();
     }

compiler/testData/loadJava/kotlinSignature/propagation/return/AddNullabilitySameGenericType1.java

@@ -3,6 +3,7 @@ package test;
 import org.jetbrains.annotations.NotNull;
 import java.util.List;
 import jet.runtime.typeinfo.KotlinSignature;
+import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError;
 
 public interface AddNullabilitySameGenericType1 {
 
@@ -12,6 +13,7 @@ public interface AddNullabilitySameGenericType1 {
     }
 
     public interface Sub extends Super {
+        @ExpectLoadError("Auto type 'jet.String' is not-null, while type in alternative signature is nullable: 'String?'")
         @KotlinSignature("fun foo(): MutableList<String?>")
         List<String> foo();
     }

compiler/testData/loadJava/kotlinSignature/propagation/return/AddNullabilitySameGenericType2.java

@@ -3,6 +3,7 @@ package test;
 import org.jetbrains.annotations.NotNull;
 import java.util.List;
 import jet.runtime.typeinfo.KotlinSignature;
+import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError;
 
 public interface AddNullabilitySameGenericType2 {
 
@@ -12,6 +13,7 @@ public interface AddNullabilitySameGenericType2 {
     }
 
     public interface Sub extends Super {
+        @ExpectLoadError("Auto type 'jet.MutableList<jet.String>' is not-null, while type in alternative signature is nullable: 'MutableList<String>?'")
         @KotlinSignature("fun foo(): MutableList<String>?")
         List<String> foo();
     }

compiler/testData/loadJava/kotlinSignature/propagation/return/AddNullabilitySameJavaType.java

@@ -3,6 +3,7 @@ package test;
 import org.jetbrains.annotations.NotNull;
 import java.lang.CharSequence;
 import jet.runtime.typeinfo.KotlinSignature;
+import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError;
 
 public interface AddNullabilitySameJavaType {
 
@@ -12,7 +13,8 @@ public interface AddNullabilitySameJavaType {
     }
 
     public interface Sub extends Super {
-        @KotlinSignature("fun CharSequence? foo()")
+        @ExpectLoadError("Auto type 'jet.CharSequence' is not-null, while type in alternative signature is nullable: 'CharSequence?'")
+        @KotlinSignature("fun foo(): CharSequence?")
         CharSequence foo();
     }
 }

compiler/testData/loadJava/kotlinSignature/propagation/return/TwoSuperclassesConflictingProjectionKinds.java

@@ -2,6 +2,7 @@ package test;
 
 import org.jetbrains.annotations.NotNull;
 import jet.runtime.typeinfo.KotlinSignature;
+import org.jetbrains.jet.jvm.compiler.annotation.ExpectLoadError;
 
 import java.util.*;
 
@@ -18,6 +19,7 @@ public interface TwoSuperclassesConflictingProjectionKinds {
     }
 
     public interface Sub extends Super1, Super2 {
+        @ExpectLoadError("Incompatible projection kinds in type arguments of super methods' return types: [CharSequence, out CharSequence]")
         public Collection<CharSequence> foo();
     }
 }