decompiled text: add test for inherited interface

idea/testData/decompiler/decompiledText/Inherited.expected.kt

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+// IntelliJ API Decompiler stub source generated from a class file
+// Implementation of methods is not available
+
+package test
+
+internal interface Inherited : dependency.Base {
+    public companion object {
+        internal final val INT_CONST: kotlin.Int /* compiled code */
+    }
+}

idea/testData/decompiler/decompiledText/Inherited/Dependency.kt

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+package dependency
+
+interface Base

idea/testData/decompiler/decompiledText/Inherited/Inherited.kt

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+package test
+
+import dependency.*
+
+interface Inherited : Base {
+    companion object {
+        val INT_CONST = 1
+    }
+}