[Spec tests] Change metadata structure of implementation and spec tests

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-4/neg/1.1.fir.kt

@@ -7,7 +7,7 @@
  * KOTLIN DIAGNOSTICS SPEC TEST (NEGATIVE)
  *
  * SPEC VERSION: 0.1-313
- * PLACE: expressions, when-expression -> paragraph 4 -> sentence 1
+ * MAIN LINK: expressions, when-expression -> paragraph 4 -> sentence 1
  * NUMBER: 1
  * DESCRIPTION:  it is possible to  replace the else condition with an always-true condition
  */

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-4/neg/1.1.kt

@@ -7,7 +7,7 @@
  * KOTLIN DIAGNOSTICS SPEC TEST (NEGATIVE)
  *
  * SPEC VERSION: 0.1-313
- * PLACE: expressions, when-expression -> paragraph 4 -> sentence 1
+ * MAIN LINK: expressions, when-expression -> paragraph 4 -> sentence 1
  * NUMBER: 1
  * DESCRIPTION:  it is possible to  replace the else condition with an always-true condition
  */

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-4/pos/1.1.fir.kt

@@ -7,7 +7,7 @@
  * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
  *
  * SPEC VERSION: 0.1-313
- * PLACE: expressions, when-expression -> paragraph 4 -> sentence 1
+ * MAIN LINK: expressions, when-expression -> paragraph 4 -> sentence 1
  * NUMBER: 1
  * DESCRIPTION:  it is possible to  replace the else condition with an always-true condition
  */

compiler/tests-spec/testData/diagnostics/linked/expressions/when-expression/p-4/pos/1.1.kt

@@ -7,7 +7,7 @@
  * KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
  *
  * SPEC VERSION: 0.1-313
- * PLACE: expressions, when-expression -> paragraph 4 -> sentence 1
+ * MAIN LINK: expressions, when-expression -> paragraph 4 -> sentence 1
  * NUMBER: 1
  * DESCRIPTION:  it is possible to  replace the else condition with an always-true condition
  */