Fix project compilation

First parameters of `DiagnosticFactory.on` methods are annotated as 'NotNull'

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JavaNullabilityWarningsChecker.kt

@@ -108,7 +108,7 @@ class JavaNullabilityWarningsChecker : AdditionalTypeChecker {
                             if (WhenChecker.getEnumMissingCases(expression, context, enumClassDescriptor).isEmpty()
                                 && !WhenChecker.containsNullCase(expression, context)) {
 
-                                c.trace.report(ErrorsJvm.WHEN_ENUM_CAN_BE_NULL_IN_JAVA.on(expression.getSubjectExpression()))
+                                c.trace.report(ErrorsJvm.WHEN_ENUM_CAN_BE_NULL_IN_JAVA.on(expression.subjectExpression!!))
                             }
                         }
                     }

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/TraitDefaultMethodCallChecker.kt

@@ -43,7 +43,7 @@ class TraitDefaultMethodCallChecker : CallChecker {
             if (classifier != null && DescriptorUtils.isInterface(classifier)) {
                 context.trace.report(
                         ErrorsJvm.INTERFACE_CANT_CALL_DEFAULT_METHOD_VIA_SUPER.on(
-                                PsiTreeUtil.getParentOfType(resolvedCall.getCall().getCallElement(), KtExpression::class.java)
+                                PsiTreeUtil.getParentOfType(resolvedCall.call.callElement, KtExpression::class.java)!!
                         )
                 )
             }