[Test] Explicitly enable UNUSED_* diagnostics in tests which are not belong to contolFlowAnalysis suite

compiler/testData/diagnostics/tests/functionLiterals/return/LocalReturnUnitWithBodyExpression.fir.kt

@@ -1,7 +1,9 @@
+// !DIAGNOSTICS: +UNUSED_EXPRESSION
+
 val flag = true
 
 // type of lambda was checked by txt
 val a = b@ { // () -> Unit
     if (flag) return@b
     else 54
-}
+}

compiler/testData/diagnostics/tests/functionLiterals/return/LocalReturnUnitWithBodyExpression.kt

@@ -1,7 +1,9 @@
+// !DIAGNOSTICS: +UNUSED_EXPRESSION
+
 val flag = true
 
 // type of lambda was checked by txt
 val a = b@ { // () -> Unit
     if (flag) return@b
     else <!UNUSED_EXPRESSION!>54<!>
-}
+}

compiler/testData/diagnostics/tests/functionLiterals/unusedLiteral.kt

@@ -1,3 +1,5 @@
+// !DIAGNOSICS: +UNUSED_LAMBDA_EXPRESSION, +UNUSED_VARIABLE
+
 fun unusedLiteral(){
     <!UNUSED_LAMBDA_EXPRESSION!>{ ->
         val <!UNUSED_VARIABLE!>i<!> = 1
@@ -9,4 +11,4 @@ fun unusedLiteralInDoWhile(){
     do<!UNUSED_LAMBDA_EXPRESSION!>{ ->
             val <!UNUSED_VARIABLE!>i<!> = 1
     }<!> while(false)
-}
+}

compiler/testData/diagnostics/tests/functionLiterals/unusedLiteralInsideUnitLiteral.fir.kt

@@ -1,3 +1,5 @@
+// !DIAGNOSICS: +UNUSED_LAMBDA_EXPRESSION
+
 fun main() {
     "".run {
         {}

compiler/testData/diagnostics/tests/functionLiterals/unusedLiteralInsideUnitLiteral.kt

@@ -1,3 +1,5 @@
+// !DIAGNOSICS: +UNUSED_LAMBDA_EXPRESSION
+
 fun main() {
     "".run {
         <!UNUSED_LAMBDA_EXPRESSION!>{}<!>