robstoll#630 add Path.isRelative method

apis/infix-en_GB/atrium-api-infix-en_GB-jvm/src/main/kotlin/ch/tutteli/atrium/api/infix/en_GB/pathAssertions.kt

@@ -293,12 +293,12 @@ infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") aRegularFile:
  *
  * @since 0.12.0
  */
-infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") relative: relative): Expect<T> =
-    _logicAppend { isRelative() }
+infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") aDirectory: aDirectory): Expect<T> =
+    _logicAppend { isDirectory() }
 
 /**
- * Expects that the subject of the assertion (a [Path]) is a directory;
- * meaning that there is a file system entry at the location the [Path] points to and that is a directory.
+ * Expects that the subject of the assertion (a [Path]) is a relative path;
+ * meaning that the [Path] specified in this instance does not start at system root.
  *
  * This assertion _resolves_ symbolic links.
  * Therefore, if a symbolic link exists at the location the subject points to, search will continue
@@ -311,10 +311,11 @@ infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") relative: rela
  * @return An [Expect] for the current subject of the assertion.
  * @throws AssertionError Might throw an [AssertionError] if the assertion made is not correct.
  *
- * @since 0.12.0
+ * @since 0.14.0
  */
-infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") relative: aDirectory): Expect<T> =
-    _logicAppend { isDirectory() }
+infix fun <T : Path> Expect<T>.toBe(@Suppress("UNUSED_PARAMETER") relative: relative): Expect<T> =
+    _logicAppend { isRelative() }
+
 
 /**
  * Creates an [Expect] for the property [Path.extension][ch.tutteli.niok.extension]