Optimize ConstraintInjector::isMyTypeVariable

Do not look into the map for constructors that are not
type variables

core/descriptors/src/org/jetbrains/kotlin/types/checker/ClassicTypeSystemContext.kt

@@ -11,18 +11,17 @@ import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.Annotations
 import org.jetbrains.kotlin.resolve.calls.inference.CapturedType
+import org.jetbrains.kotlin.resolve.constants.IntegerLiteralTypeConstructor
 import org.jetbrains.kotlin.resolve.descriptorUtil.hasExactAnnotation
 import org.jetbrains.kotlin.resolve.descriptorUtil.hasNoInferAnnotation
-import org.jetbrains.kotlin.resolve.constants.IntegerLiteralTypeConstructor
 import org.jetbrains.kotlin.resolve.descriptorUtil.isExactAnnotation
 import org.jetbrains.kotlin.types.*
 import org.jetbrains.kotlin.types.model.*
-import org.jetbrains.kotlin.types.model.CaptureStatus
 import org.jetbrains.kotlin.types.typeUtil.asTypeProjection
 import org.jetbrains.kotlin.types.typeUtil.contains
-import kotlin.math.max
 import kotlin.contracts.ExperimentalContracts
 import kotlin.contracts.contract
+import kotlin.math.max
 
 interface ClassicTypeSystemContext : TypeSystemInferenceExtensionContext {
     override fun TypeConstructorMarker.isDenotable(): Boolean {
@@ -376,6 +375,10 @@ interface ClassicTypeSystemContext : TypeSystemInferenceExtensionContext {
         errorSupportedOnlyInTypeInference()
     }
 
+    override fun KotlinTypeMarker.mayBeTypeVariable(): Boolean {
+        errorSupportedOnlyInTypeInference()
+    }
+
     override fun CapturedTypeMarker.typeConstructorProjection(): TypeArgumentMarker {
         require(this is NewCapturedType, this::errorMessage)
         return this.constructor.projection
@@ -563,4 +566,4 @@ fun requireOrDescribe(condition: Boolean, value: Any?) {
         } else ""
         "Unexpected: value = '$value'$typeInfo"
     }
-}
+}

core/type-system/src/org/jetbrains/kotlin/types/model/TypeSystemContext.kt

@@ -122,6 +122,7 @@ interface TypeSystemInferenceExtensionContext : TypeSystemContext, TypeSystemBui
 
     fun TypeVariableMarker.freshTypeConstructor(): TypeConstructorMarker
 
+    fun KotlinTypeMarker.mayBeTypeVariable(): Boolean
 
     fun CapturedTypeMarker.typeConstructorProjection(): TypeArgumentMarker
     fun CapturedTypeMarker.captureStatus(): CaptureStatus