Fix incorrect reported path for switch types when validating types

This change requires corresponding change in kaitai_struct_tests repository

Partially fixes the following error (the first line):
```
[info] - attr_invalid_switch_inner *** FAILED ***
[info]   attr_invalid_switch_inner.ksy: /seq/1/type/cases/IntNum(42)/size:
[info]   	error: invalid type: expected integer, got CalcBooleanType
[info]
[info]   attr_invalid_switch_inner.ksy: /seq/1/type/cases/Name(identifier(_))/size:
[info]   	error: invalid type: expected integer, got CalcBooleanType
[info]    did not equal attr_invalid_switch_inner.ksy: /seq/1/size:
[info]   	error: invalid type: expected integer, got CalcBooleanType (SimpleMatchers.scala:34)
```

shared/src/main/scala/io/kaitai/struct/precompile/TypeValidator.scala

@@ -168,7 +168,11 @@ class TypeValidator(specs: ClassSpecs) extends PrecompileStep {
       } else {
         None
       }
-      val problems2 = validateDataType(caseType, casePath)
+      // All properties of types is declared on the common level for all variants so
+      // we don't use `casePath` here
+      // FIXME: We need to filter repeated errors here, because some errors influences
+      // many cases
+      val problems2 = validateDataType(caseType, path)
       problems1 ++ problems2
     }
   }