Revert "Provide quickfix for specifying type of variable initialized with null"

This reverts commit cdf7f46c

idea/src/org/jetbrains/kotlin/idea/quickfix/ChangeVariableTypeFix.kt

@@ -23,26 +23,20 @@ import com.intellij.openapi.project.Project
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.PropertyDescriptor
 import org.jetbrains.kotlin.diagnostics.Diagnostic
-import org.jetbrains.kotlin.diagnostics.Errors
 import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptorIfAny
 import org.jetbrains.kotlin.idea.caches.resolve.unsafeResolveToDescriptor
 import org.jetbrains.kotlin.idea.core.ShortenReferences
 import org.jetbrains.kotlin.idea.core.quickfix.QuickFixUtil
-import org.jetbrains.kotlin.idea.intentions.branchedTransformations.isNullExpression
-import org.jetbrains.kotlin.idea.references.mainReference
 import org.jetbrains.kotlin.idea.util.IdeDescriptorRenderers
-import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.psi.*
-import org.jetbrains.kotlin.psi.psiUtil.getStrictParentOfType
 import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
 import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 import org.jetbrains.kotlin.types.ErrorUtils
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.checker.KotlinTypeChecker
-import org.jetbrains.kotlin.types.typeUtil.makeNullable
 import java.util.*
 
 open class ChangeVariableTypeFix(element: KtCallableDeclaration, type: KotlinType) : KotlinQuickFixAction<KtCallableDeclaration>(element) {
@@ -172,15 +166,4 @@ open class ChangeVariableTypeFix(element: KtCallableDeclaration, type: KotlinTyp
             return actions
         }
     }
-
-    object VariableInitializedWithNullFactory : KotlinSingleIntentionActionFactory() {
-        override fun createAction(diagnostic: Diagnostic): IntentionAction? {
-            val binaryExpression = diagnostic.psiElement.getStrictParentOfType<KtBinaryExpression>() ?: return null
-            val left = binaryExpression.left ?: return null
-            if (binaryExpression.operationToken != KtTokens.EQ) return null
-            val property = left.mainReference?.resolve() as? KtProperty ?: return null
-            if (!property.isVar || property.typeReference != null || !property.initializer.isNullExpression()) return null
-            return ChangeVariableTypeFix(property, Errors.TYPE_MISMATCH.cast(diagnostic).b.makeNullable())
-        }
-    }
 }

idea/src/org/jetbrains/kotlin/idea/quickfix/QuickFixRegistrar.kt

@@ -316,7 +316,6 @@ class QuickFixRegistrar : QuickFixContributor {
         PROPERTY_TYPE_MISMATCH_ON_OVERRIDE.registerFactory(changeVariableTypeFix)
         VAR_TYPE_MISMATCH_ON_OVERRIDE.registerFactory(changeVariableTypeFix)
         COMPONENT_FUNCTION_RETURN_TYPE_MISMATCH.registerFactory(ChangeVariableTypeFix.ComponentFunctionReturnTypeMismatchFactory)
-        TYPE_MISMATCH.registerFactory(ChangeVariableTypeFix.VariableInitializedWithNullFactory)
 
         val changeFunctionReturnTypeFix = ChangeCallableReturnTypeFix.ChangingReturnTypeToUnitFactory
         RETURN_TYPE_MISMATCH.registerFactory(changeFunctionReturnTypeFix)

idea/testData/quickfix/typeMismatch/variableInitializedWithNull.kt

@@ -1,7 +0,0 @@
-// "Change type of 'x' to 'String?'" "true"
-fun foo(condition: Boolean) {
-    var x = null
-    if (condition) {
-        x = "abc"<caret>
-    }
-}

idea/testData/quickfix/typeMismatch/variableInitializedWithNull.kt.after

@@ -1,7 +0,0 @@
-// "Change type of 'x' to 'String?'" "true"
-fun foo(condition: Boolean) {
-    var x: String? = null
-    if (condition) {
-        x = "abc"
-    }
-}

idea/testData/quickfix/typeMismatch/variableInitializedWithNull2.kt

@@ -1,12 +0,0 @@
-// "Change type of 'x' to 'String?'" "false"
-// ACTION: Remove braces from 'if' statement
-// ACTION: To raw string literal
-// ACTION: Convert assignment to assignment expression
-// ERROR: Type mismatch: inferred type is String but Nothing? was expected
-// ERROR: Val cannot be reassigned
-fun foo(condition: Boolean) {
-    val x = null
-    if (condition) {
-        x = "abc"<caret>
-    }
-}

idea/testData/quickfix/typeMismatch/variableInitializedWithNull3.kt

@@ -1,11 +0,0 @@
-// "Change type of 'x' to 'String?'" "false"
-// ACTION: Remove braces from 'if' statement
-// ACTION: To raw string literal
-// ACTION: Convert assignment to assignment expression
-// ERROR: Type mismatch: inferred type is String but Int? was expected
-fun foo(condition: Boolean) {
-    var x: Int? = null
-    if (condition) {
-        x = "abc"<caret>
-    }
-}

idea/testData/quickfix/typeMismatch/variableInitializedWithNull4.kt

@@ -1,11 +0,0 @@
-// "Change type of 'x' to 'String?'" "false"
-// ACTION: Remove braces from 'if' statement
-// ACTION: To raw string literal
-// ACTION: Convert assignment to assignment expression
-// ERROR: Type mismatch: inferred type is String but Int was expected
-fun foo(condition: Boolean) {
-    var x = 1
-    if (condition) {
-        x = "abc"<caret>
-    }
-}

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixTestGenerated.java

@@ -14258,26 +14258,6 @@ public class QuickFixTestGenerated extends AbstractQuickFixTest {
             runTest("idea/testData/quickfix/typeMismatch/unresolvableTypeParams.kt");
         }
 
-        @TestMetadata("variableInitializedWithNull.kt")
-        public void testVariableInitializedWithNull() throws Exception {
-            runTest("idea/testData/quickfix/typeMismatch/variableInitializedWithNull.kt");
-        }
-
-        @TestMetadata("variableInitializedWithNull2.kt")
-        public void testVariableInitializedWithNull2() throws Exception {
-            runTest("idea/testData/quickfix/typeMismatch/variableInitializedWithNull2.kt");
-        }
-
-        @TestMetadata("variableInitializedWithNull3.kt")
-        public void testVariableInitializedWithNull3() throws Exception {
-            runTest("idea/testData/quickfix/typeMismatch/variableInitializedWithNull3.kt");
-        }
-
-        @TestMetadata("variableInitializedWithNull4.kt")
-        public void testVariableInitializedWithNull4() throws Exception {
-            runTest("idea/testData/quickfix/typeMismatch/variableInitializedWithNull4.kt");
-        }
-
         @TestMetadata("when.kt")
         public void testWhen() throws Exception {
             runTest("idea/testData/quickfix/typeMismatch/when.kt");