Implement tests map generator and refactor folder structure to spec tests linking

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-5/neg/1.1.kt

@@ -0,0 +1,33 @@
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (NEGATIVE)
+ *
+ * SPEC VERSION: 0.1-draft
+ * PLACE: expressions, when-expression -> paragraph 5 -> sentence 1
+ * NUMBER: 1
+ * DESCRIPTION: 'When' without bound value and with 'else' branch not in the last position.
+ */
+
+// TESTCASE NUMBER: 1
+fun case_1(<!UNUSED_PARAMETER!>value_1<!>: Int): String = when {
+    <!ELSE_MISPLACED_IN_WHEN!>else<!> -> ""
+    <!UNREACHABLE_CODE!>value_1 == 1 -> ""<!>
+}
+
+// TESTCASE NUMBER: 2
+fun case_2(value_1: Int): String = when {
+    value_1 == 1 -> ""
+    <!ELSE_MISPLACED_IN_WHEN!>else<!> -> ""
+    <!UNREACHABLE_CODE!>value_1 == 2 -> ""<!>
+}
+
+// TESTCASE NUMBER: 3
+fun case_3(): String {
+    when {
+        <!ELSE_MISPLACED_IN_WHEN!>else<!> -> return ""
+        <!UNREACHABLE_CODE!>else -> return ""<!>
+    }
+
+    <!UNREACHABLE_CODE!>return ""<!>
+}

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-5/pos/1.1.kt

@@ -0,0 +1,26 @@
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-draft
+ * PLACE: expressions, when-expression -> paragraph 5 -> sentence 1
+ * NUMBER: 1
+ * DESCRIPTION: 'When' without bound value and with else branch in the last position.
+ */
+
+// TESTCASE NUMBER: 1
+fun case_1(value_1: Int): String {
+    when {
+        value_1 == 1 -> return ""
+        value_1 == 2 -> return ""
+        else -> return ""
+    }
+}
+
+// TESTCASE NUMBER: 2
+fun case_2(value_1: Int): String = when {
+    value_1 == 1 -> ""
+    value_1 == 2 -> ""
+    else -> ""
+}