Introduce FirInitializerTypeMismatchChecker

compiler/fir/analysis-tests/testData/resolveWithStdlib/diagnostics/initializerTypeMismatchChecker/InitializerTypeMismatch

@@ -0,0 +1,31 @@
+// FULL_JDK
+
+import java.util.*
+
+open class A
+open class B : A()
+class C : B()
+
+fun foo() {
+    // InitializerTypeMismatchChecker doesn't report here due this is work for another checker
+    val (a: Int, b: Int) = bar()
+}
+
+fun bar(): Pair<Int?, Int?> = null to null
+
+class Classes {
+    val p: Int = 1 // ok
+    <!INITIALIZER_TYPE_MISMATCH{LT}!>val <!INITIALIZER_TYPE_MISMATCH{PSI}!>incorrect<!>: C = B()<!>
+    val correct: A = C()
+}
+
+class Expressions {
+    val n: Number = 1 // ok
+    <!INITIALIZER_TYPE_MISMATCH{LT}!>val <!INITIALIZER_TYPE_MISMATCH{PSI}!>s<!>: Number = "" // not ok<!>
+    <!INITIALIZER_TYPE_MISMATCH{LT}!>val <!INITIALIZER_TYPE_MISMATCH{PSI}!>s2<!>: Number = "" + "expression" // not ok<!>
+}
+
+class Generics {
+    val n: SortedSet<Int> = TreeSet() // ok
+    val b: SortedSet<Int> = TreeSet<Int>() // ok
+}

compiler/fir/analysis-tests/testData/resolveWithStdlib/diagnostics/initializerTypeMismatchChecker/InitializerTypeMismatch.fir.txt

@@ -0,0 +1,69 @@
+FILE: InitializerTypeMismatch.kt
+    public open class A : R|kotlin/Any| {
+        public constructor(): R|A| {
+            super<R|kotlin/Any|>()
+        }
+
+    }
+    public open class B : R|A| {
+        public constructor(): R|B| {
+            super<R|A|>()
+        }
+
+    }
+    public final class C : R|B| {
+        public constructor(): R|C| {
+            super<R|B|>()
+        }
+
+    }
+    public final fun foo(): R|kotlin/Unit| {
+        lval <destruct>: R|kotlin/Pair<kotlin/Int?, kotlin/Int?>| = R|/bar|()
+        lval a: R|kotlin/Int| = R|<local>/<destruct>|.R|SubstitutionOverride<kotlin/Pair.component1: R|kotlin/Int?|>|()
+        lval b: R|kotlin/Int| = R|<local>/<destruct>|.R|SubstitutionOverride<kotlin/Pair.component2: R|kotlin/Int?|>|()
+    }
+    public final fun bar(): R|kotlin/Pair<kotlin/Int?, kotlin/Int?>| {
+        ^bar Null(null).R|kotlin/to|<R|kotlin/Nothing?|, R|kotlin/Nothing?|>(Null(null))
+    }
+    public final class Classes : R|kotlin/Any| {
+        public constructor(): R|Classes| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final val p: R|kotlin/Int| = Int(1)
+            public get(): R|kotlin/Int|
+
+        public final val incorrect: R|C| = R|/B.B|()
+            public get(): R|C|
+
+        public final val correct: R|A| = R|/C.C|()
+            public get(): R|A|
+
+    }
+    public final class Expressions : R|kotlin/Any| {
+        public constructor(): R|Expressions| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final val n: R|kotlin/Number| = Int(1)
+            public get(): R|kotlin/Number|
+
+        public final val s: R|kotlin/Number| = String()
+            public get(): R|kotlin/Number|
+
+        public final val s2: R|kotlin/Number| = String().R|kotlin/String.plus|(String(expression))
+            public get(): R|kotlin/Number|
+
+    }
+    public final class Generics : R|kotlin/Any| {
+        public constructor(): R|Generics| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final val n: R|java/util/SortedSet<kotlin/Int>| = R|java/util/TreeSet.TreeSet|<R|ft<kotlin/Int, kotlin/Int?>|>()
+            public get(): R|java/util/SortedSet<kotlin/Int>|
+
+        public final val b: R|java/util/SortedSet<kotlin/Int>| = R|java/util/TreeSet.TreeSet|<R|ft<kotlin/Int, kotlin/Int?>|>()
+            public get(): R|java/util/SortedSet<kotlin/Int>|
+
+    }

compiler/fir/analysis-tests/testData/resolveWithStdlib/diagnostics/initializerTypeMismatchChecker/functionType.fir.txt

@@ -0,0 +1,43 @@
+FILE: TestCase1.kt
+    public final class Case : R|kotlin/Any| {
+        public constructor(): R|testsCase1/Case| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final fun case(v: R|testsCase1/V|): R|kotlin/Unit| {
+            lval va: R|() -> kotlin/String| = Q|testsCase1/V|::R|testsCase1/a|
+            lval vb: R|() -> kotlin/String| = Q|testsCase1/V|::R|testsCase1/V.Companion.b|
+            lval va1: R|() -> kotlin/String| = R|<local>/v|::R|testsCase1/a|
+            lval vb1: R|() -> kotlin/String| = Q|testsCase1/V|::R|testsCase1/V.Companion.b|
+        }
+
+        public final val R|testsCase1/V.Companion|.b: R|kotlin/String|
+            public get(): R|kotlin/String| {
+                ^ String(1)
+            }
+
+    }
+    public final val R|testsCase1/V|.a: R|kotlin/String|
+        public get(): R|kotlin/String| {
+            ^ String(1)
+        }
+    public final val R|testsCase1/V.Companion|.a: R|kotlin/String|
+        public get(): R|kotlin/String| {
+            ^ String(1)
+        }
+    public final class V : R|kotlin/Any| {
+        public constructor(): R|testsCase1/V| {
+            super<R|kotlin/Any|>()
+        }
+
+        public final companion object Companion : R|kotlin/Any| {
+            private constructor(): R|testsCase1/V.Companion| {
+                super<R|kotlin/Any|>()
+            }
+
+            public final const val b: R|kotlin/String| = String(1)
+                public get(): R|kotlin/String|
+
+        }
+
+    }

compiler/fir/analysis-tests/testData/resolveWithStdlib/diagnostics/initializerTypeMismatchChecker/functionType.kt

@@ -0,0 +1,39 @@
+// FULL_JDK
+// !DIAGNOSTICS: -UNUSED_VARIABLE -ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE -UNUSED_VALUE -UNUSED_PARAMETER -UNUSED_EXPRESSION
+// SKIP_TXT
+
+
+
+// FILE: TestCase1.kt
+// TESTCASE NUMBER: 1
+package testsCase1
+
+class Case() {
+    fun case(v: V) {
+        // InitializerTypeMismatchChecker bug
+        val va: () -> String = <!INITIALIZER_TYPE_MISMATCH!>(V)::a<!>
+
+        val vb: () -> String = (V)::b
+
+        val va1: () -> String = v::a
+        val vb1: () -> String = (V)::b
+
+    }
+
+    val V.Companion.b: String // (3)
+        get() = "1"
+
+}
+
+val V.a: String
+    get() = "1"
+
+val V.Companion.a: String
+    get() = "1"
+
+
+class V {
+    companion object {
+        const val b: String = "1"
+    }
+}