KT-752 RangeTo intrinsic called with receiver

compiler/backend/src/org/jetbrains/jet/codegen/intrinsics/RangeTo.java

@@ -18,16 +18,24 @@ import java.util.List;
 public class RangeTo implements IntrinsicMethod {
     @Override
     public StackValue generate(ExpressionCodegen codegen, InstructionAdapter v, Type expectedType, PsiElement element, List<JetExpression> arguments, StackValue receiver) {
-        JetBinaryExpression expression = (JetBinaryExpression) element;
-        final Type leftType = codegen.expressionType(expression.getLeft());
-        if (JetTypeMapper.isIntPrimitive(leftType)) {
-            codegen.gen(expression.getLeft(), Type.INT_TYPE);
-            codegen.gen(expression.getRight(), Type.INT_TYPE);
+        if(arguments.size()==1) {
+            receiver.put(Type.INT_TYPE, v);
+            codegen.gen(arguments.get(0), Type.INT_TYPE);
             v.invokestatic("jet/IntRange", "rangeTo", "(II)Ljet/IntRange;");
             return StackValue.onStack(JetTypeMapper.TYPE_INT_RANGE);
         }
         else {
-            throw new UnsupportedOperationException("ranges are only supported for int objects");
+            JetBinaryExpression expression = (JetBinaryExpression) element;
+            final Type leftType = codegen.expressionType(expression.getLeft());
+            if (JetTypeMapper.isIntPrimitive(leftType)) {
+                codegen.gen(expression.getLeft(), Type.INT_TYPE);
+                codegen.gen(expression.getRight(), Type.INT_TYPE);
+                v.invokestatic("jet/IntRange", "rangeTo", "(II)Ljet/IntRange;");
+                return StackValue.onStack(JetTypeMapper.TYPE_INT_RANGE);
+            }
+            else {
+                throw new UnsupportedOperationException("ranges are only supported for int objects");
+            }
         }
     }
 }

compiler/testData/codegen/regressions/kt752.jet

@@ -0,0 +1,12 @@
+namespace demo_range
+
+fun Int?.rangeTo(other : Int?) : IntRange = this.sure().rangeTo(other.sure())
+
+fun box() : String {
+    val x : Int? = 10
+    val y : Int? = 12
+
+    for (i in x..y)
+      System.out?.println(i.inv())
+    return "OK"
+}

compiler/tests/org/jetbrains/jet/codegen/PrimitiveTypesTest.java

@@ -337,4 +337,9 @@ public class PrimitiveTypesTest extends CodegenTestCase {
 //        System.out.println(generateToText());
         blackBox();
     }
+
+    public void testKt752 () {
+        blackBoxFile("regressions/kt752.jet");
+        System.out.println(generateToText());
+    }
 }