core: fix imports for inner classes with same names

jadx-core/src/main/java/jadx/core/codegen/ClassGen.java

@@ -397,10 +397,15 @@ public class ClassGen {
 			if (classInfo.getPackage().equals(useCls.getPackage())) {
 				fullName = classInfo.getNameWithoutPackage();
 			}
-			for (ClassInfo importCls : imports) {
+			for (ClassInfo importCls : getImports()) {
 				if (!importCls.equals(classInfo)
 						&& importCls.getShortName().equals(shortName)) {
-					return fullName;
+					if (classInfo.isInner()) {
+						String parent = useClassInternal(useCls, classInfo.getParentClass());
+						return parent + "." + shortName;
+					} else {
+						return fullName;
+					}
 				}
 			}
 			addImport(classInfo);
@@ -416,6 +421,14 @@ public class ClassGen {
 		}
 	}
 
+	private Set<ClassInfo> getImports() {
+		if (parentGen != null) {
+			return parentGen.getImports();
+		} else {
+			return imports;
+		}
+	}
+
 	private static boolean isClassInnerFor(ClassInfo inner, ClassInfo parent) {
 		if (inner.isInner()) {
 			ClassInfo p = inner.getParentClass();
@@ -449,10 +462,6 @@ public class ClassGen {
 		}
 	}
 
-	public Set<ClassInfo> getImports() {
-		return imports;
-	}
-
 	public ClassGen getParentGen() {
 		return parentGen;
 	}

jadx-samples/src/main/java/jadx/samples/TestImports2.java

+package jadx.samples;
+
+import jadx.samples.otherpkg.C.E;
+import jadx.samples.otherpkg.D;
+
+public class TestImports2 extends AbstractTest {
+
+	public Object f1() {
+		return new E() {
+			@Override
+			public String toString() {
+				return "C.E";
+			}
+		};
+	}
+
+	public Object f2() {
+		return new D.E() {
+			@Override
+			public String toString() {
+				return "D.E";
+			}
+		};
+	}
+
+	public static class X1 extends E {
+	}
+
+	public static class X2 extends D.E {
+	}
+
+	@Override
+	public boolean testRun() {
+		return true;
+	}
+
+	public static void main(String[] args) {
+		new TestImports2().testRun();
+	}
+}

jadx-samples/src/main/java/jadx/samples/otherpkg/C.java

+package jadx.samples.otherpkg;
+
+public class C {
+	public static class E {
+
+	}
+}

jadx-samples/src/main/java/jadx/samples/otherpkg/D.java

+package jadx.samples.otherpkg;
+
+public class D {
+	public static class E {
+
+	}
+}