long == <int_literal> in Java converted to red code in Kotlin #KT-19393 Fixed

j2k/src/org/jetbrains/kotlin/j2k/CodeConverter.kt

@@ -130,6 +130,11 @@ class CodeConverter(
                     }
                     convertedExpression = LiteralExpression(text)
                 }
+                else if (expectedTypeStr == "long") {
+                    if (expression.parent is PsiBinaryExpression) {
+                        convertedExpression = LiteralExpression("${convertedExpression.canonicalCode()}L")
+                    }
+                }
                 else if (expectedTypeStr == "char") {
                     convertedExpression = MethodCallExpression.buildNonNull(convertedExpression, "toChar")
                 }

j2k/testData/fileOrElement/literalExpression/long.java

@@ -20,4 +20,9 @@ class A {
         l2 = 10L
         l4 = 10
     }
+
+    void foo(long z) {
+        boolean b1 = z == 1;
+        boolean b2 = z != 1;
+    }
 }

j2k/testData/fileOrElement/literalExpression/long.kt

@@ -20,4 +20,9 @@ internal class A {
         l2 = 10L
         l4 = 10
     }
-}
+
+    fun foo(z: Long) {
+        val b1 = z == 1L
+        val b2 = z != 1L
+    }
+}