FIR checker: Report VAL_OR_VAR_ON_*_PARAMETER.

compiler/testData/diagnostics/tests/declarationChecks/DataFlowInMultiDeclInFor.fir.kt

@@ -1,15 +0,0 @@
-// KT-2667 Support multi-declarations in for-loops in control flow analysis
-package d
-
-class A {
-    operator fun component1() = 1
-    operator fun component2() = 2
-    operator fun component3() = 3
-}
-
-fun foo(list: List<A>) {
-    for (var (c1, c2, c3) in list) {
-        <!VAL_REASSIGNMENT!>c1<!> = 1
-        c3 + 1
-    }
-}

compiler/testData/diagnostics/tests/declarationChecks/DataFlowInMultiDeclInFor.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // KT-2667 Support multi-declarations in for-loops in control flow analysis
 package d
 

compiler/testData/diagnostics/tests/declarationChecks/valVarFunctionParameter.fir.kt

@@ -1,12 +0,0 @@
-fun f(
-        val a: Int,
-        var b: Int,
-        c: Int,
-        <!MULTIPLE_VARARG_PARAMETERS!>vararg<!> var d: Int,
-        <!MULTIPLE_VARARG_PARAMETERS!>vararg<!> val e: Int,
-        <!MULTIPLE_VARARG_PARAMETERS!>vararg<!> f: Int
-) {
-    
-    
-    a + b + c + d[0] + e[0] + f[0] // to avoid 'unused parameter'
-}

compiler/testData/diagnostics/tests/declarationChecks/valVarFunctionParameter.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 fun f(
         <!VAL_OR_VAR_ON_FUN_PARAMETER!>val<!> a: Int,
         <!VAL_OR_VAR_ON_FUN_PARAMETER!>var<!> b: Int,