Selecting one method launches tests for all methods with same signature from nested classes

[volivan239]

To Reproduce

Launch the action on the following class, select only method f and click Generate:

class ExampleClass {
 int f() {
 return 1;
 }
 static class Inner {
 int f() {
 return 1;
 }
 }
}

Expected behavior

Only tests for ExampleClass.f are generated.

Actual behavior

Tests are generated for both ExampleClass.f and ExampleClass.Inner.f

Visual proofs (screenshots, logs, images)

public final class ExampleClassTest {
 ///region Test suites for executable rndpkg.ExampleClass.f

 ///region

 @Test
 public void testF2() {
 ExampleClass exampleClass = new ExampleClass();

 int actual = exampleClass.f();

 assertEquals(1, actual);
 }
 ///endregion

 ///endregion

 ///region Tests for Inner

 @Nested
 public final class InnerTest {
 ///region Test suites for executable rndpkg.ExampleClass$Inner.f

 ///region

 @Test
 public void testF1() {
 Inner inner = new Inner();

 int actual = inner.f();

 assertEquals(1, actual);
 }
 ///endregion

 ///endregion
 }
 ///endregion
}

Additional context

Seems like the problem is in org.utbot.intellij.plugin.process.EngineProcess#findMethodsInClassMatchingSelected, more specific, in that Signatures doesn't contain info about declaring class.

[volivan239]

Fixed by #1502