KT-18538 Fix inspection to detect unnecessary grand-base class qualifier

- Add separate option to enable/disable this inspection, as it is not
obvious if it should be always enabled or not
  - This option can be used to detect all unnecessary qualifiers in
  tests
- Add possibility to configure inspections via `settings.xml` in the
`AbstractMultiFileLocalInspectionTest.kt`
- ^KT-18538 Fixed

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/after/my/Reproducer.java

@@ -0,0 +1,4 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/after/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/after/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/before/my/Reproducer.java

@@ -0,0 +1,4 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/before/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/before/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        ReproducerBase<caret>.test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/fromKotlinTest.test

@@ -0,0 +1,4 @@
+{
+    "inspectionClass": "org.jetbrains.kotlin.idea.inspections.RemoveRedundantQualifierNameInspection",
+    "mainFile": "test.kt"
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifier/settings.xml

@@ -0,0 +1,3 @@
+<inspection_tool class="RemoveRedundantQualifierNameInspection" enabled="true" enabled_by_default="true">
+  <option name="unwrapFakeOverrides" value="true"/>
+</inspection_tool>

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/after/my/Reproducer.java

@@ -0,0 +1,5 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/after/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/after/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        ReproducerBase.test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/before/my/Reproducer.java

@@ -0,0 +1,5 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/before/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/before/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        ReproducerBase<caret>.test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/fromKotlinTest.test

@@ -0,0 +1,5 @@
+{
+    "inspectionClass": "org.jetbrains.kotlin.idea.inspections.RemoveRedundantQualifierNameInspection",
+    "problem": "none",
+    "mainFile": "test.kt"
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierAmbiguous/settings.xml

@@ -0,0 +1,3 @@
+<inspection_tool class="RemoveRedundantQualifierNameInspection" enabled="true" enabled_by_default="true">
+  <option name="unwrapFakeOverrides" value="true"/>
+</inspection_tool>

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/after/my/Reproducer.java

@@ -0,0 +1,4 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/after/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/after/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        ReproducerBase.test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/before/my/Reproducer.java

@@ -0,0 +1,4 @@
+package my;
+
+public class Reproducer extends ReproducerBase {
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/before/my/ReproducerBase.java

@@ -0,0 +1,5 @@
+package my;
+
+public class ReproducerBase {
+    public static void test() {}
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/before/test.kt

@@ -0,0 +1,10 @@
+package my.simple.name
+
+import my.Reproducer
+import my.ReproducerBase
+
+class Test : Reproducer() {
+    init {
+        ReproducerBase<caret>.test()
+    }
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/fromKotlinTest.test

@@ -0,0 +1,5 @@
+{
+    "inspectionClass": "org.jetbrains.kotlin.idea.inspections.RemoveRedundantQualifierNameInspection",
+    "problem": "none",
+    "mainFile": "test.kt"
+}

idea/testData/multiFileLocalInspections/redundantQualifierName/unnecessaryNonDirectParentClassQualifierDisabled/settings.xml

@@ -0,0 +1,3 @@
+<inspection_tool class="RemoveRedundantQualifierNameInspection" enabled="true" enabled_by_default="true">
+  <option name="unwrapFakeOverrides" value="false"/>
+</inspection_tool>