Don't skip through @Slice to check for disallowed target insns. Closes #2541

Author: Earthcomputer

src/main/kotlin/platform/mixin/handlers/injectionPoint/AtResolver.kt

@@ -29,6 +29,8 @@ import com.demonwav.mcdev.platform.mixin.reference.isMiscDynamicSelector
 import com.demonwav.mcdev.platform.mixin.reference.parseMixinSelector
 import com.demonwav.mcdev.platform.mixin.reference.target.TargetReference
 import com.demonwav.mcdev.platform.mixin.util.InjectionPointSpecifier
+import com.demonwav.mcdev.platform.mixin.util.MixinConstants.Annotations.AT
+import com.demonwav.mcdev.platform.mixin.util.MixinConstants.Annotations.SLICE
 import com.demonwav.mcdev.platform.mixin.util.MixinConstants.Classes.SHIFT
 import com.demonwav.mcdev.platform.mixin.util.findSourceClass
 import com.demonwav.mcdev.platform.mixin.util.findSourceElement
@@ -152,11 +154,13 @@ class AtResolver(
             }
         }
 
-        fun findInjectorAnnotation(at: PsiAnnotation): PsiAnnotation? {
+        fun findInjectorAnnotation(at: PsiAnnotation, skipThroughSlice: Boolean = true): PsiAnnotation? {
             return at.parents(false)
                 .takeWhile { it !is PsiClass }
                 .filterIsInstance<PsiAnnotation>()
-                .firstOrNull { it.parent is PsiModifierList }
+                .firstOrNull {
+                    !skipThroughSlice || (!it.hasQualifiedName(SLICE) && !it.hasQualifiedName(AT))
+                }
         }
 
         fun getShift(at: PsiAnnotation): Int {
@@ -281,7 +285,7 @@ class AtResolver(
         val injectionPoint = getInjectionPoint(at) ?: return emptyList()
         val targetAttr = at.findAttributeValue("target")
         val target = targetAttr?.let { parseMixinSelector(it) }
-        val injector = findInjectorAnnotation(at)?.let(MixinAnnotationHandler::forMixinAnnotation)
+        val injector = findInjectorAnnotation(at, skipThroughSlice = false)?.let(MixinAnnotationHandler::forMixinAnnotation)
             as? InjectorAnnotationHandler
 
         // Collect all possible targets

src/main/kotlin/platform/mixin/inspection/injector/DisallowedTargetInsnInspection.kt

@@ -41,7 +41,7 @@ class DisallowedTargetInsnInspection : MixinInspection() {
                 return
             }
 
-            val injectorAnnotation = AtResolver.findInjectorAnnotation(annotation) ?: return
+            val injectorAnnotation = AtResolver.findInjectorAnnotation(annotation, skipThroughSlice = false) ?: return
             val injector = MixinAnnotationHandler.forMixinAnnotation(injectorAnnotation, annotation.project)
                 as? InjectorAnnotationHandler ?: return
             val containingClass = injectorAnnotation.findContainingClass() ?: return