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

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-2/pos/3.1.kt

@@ -0,0 +1,15 @@
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-draft
+ * PLACE: expressions, when-expression -> paragraph 2 -> sentence 3
+ * NUMBER: 1
+ * DESCRIPTION: Empty when with bound value.
+ */
+
+// TESTCASE NUMBER: 1
+fun case_1(value_1: Int) {
+    when (<!UNUSED_EXPRESSION!>value_1<!>) {}
+}

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-2/pos/3.2.kt

@@ -0,0 +1,15 @@
+// SKIP_TXT
+
+/*
+ * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
+ *
+ * SPEC VERSION: 0.1-draft
+ * PLACE: expressions, when-expression -> paragraph 2 -> sentence 3
+ * NUMBER: 2
+ * DESCRIPTION: Empty when without bound value.
+ */
+
+// TESTCASE NUMBER: 1
+fun case_1() {
+    when {}
+}