[FIR] Fix TEST SPEC tests

Ensure the test data contents for both the frontends
are identical. This is needed for proper analysis of
K2-differences.

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/1.fir.kt

@@ -1,5 +1,13 @@
 // !OPT_IN: kotlin.contracts.ExperimentalContracts
 
+/*
+ * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
+ *
+ * SECTIONS: contracts, declarations, contractFunction
+ * NUMBER: 1
+ * DESCRIPTION: Check that recursion isn't allowed in contract functions with CallsInPlace effect.
+ */
+
 import kotlin.contracts.*
 
 // TESTCASE NUMBER: 1

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/2.fir.kt

@@ -1,6 +1,16 @@
 // !LANGUAGE: +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
 // !OPT_IN: kotlin.contracts.ExperimentalContracts
 
+/*
+ * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
+ *
+ * SECTIONS: contracts, declarations, contractFunction
+ * NUMBER: 2
+ * DESCRIPTION: Check report about use contracts in literal functions, lambdas or not top-level functions.
+ * ISSUES: KT-26149
+ * HELPERS: classes
+ */
+
 import kotlin.contracts.*
 
 // TESTCASE NUMBER: 1

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/4.fir.kt

@@ -1,6 +1,15 @@
 // !DIAGNOSTICS: -UNUSED_PARAMETER
 // !OPT_IN: kotlin.contracts.ExperimentalContracts
 
+/*
+ * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
+ *
+ * SECTIONS: contracts, declarations, contractFunction
+ * NUMBER: 4
+ * DESCRIPTION: Check that fun with contract and CallsInPlace effect is an inline function.
+ * ISSUES: KT-27090
+ */
+
 import kotlin.contracts.*
 
 // TESTCASE NUMBER: 1

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/pos/1.fir.kt

@@ -1,5 +1,13 @@
 // !OPT_IN: kotlin.contracts.ExperimentalContracts
 
+/*
+ * KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (POSITIVE)
+ *
+ * SECTIONS: contracts, declarations, contractFunction
+ * NUMBER: 1
+ * DESCRIPTION: Use a contract function before the declaration it.
+ */
+
 import kotlin.contracts.*
 
 // TESTCASE NUMBER: 1