[FIR IDE] LC add jvmstatic method into companion object

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightAnnotationClassSymbol.kt

@@ -47,7 +47,7 @@ internal class FirLightAnnotationClassSymbol(
                 .filterNot { it is KtFunctionSymbol && it.visibility == KtSymbolVisibility.PRIVATE }
                 .filterNot { it is KtConstructorSymbol }
 
-            createMethods(visibleDeclarations, isTopLevel = false, result)
+            createMethods(visibleDeclarations, result)
         }
 
         result

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightAnonymousClassForSymbol.kt

@@ -60,7 +60,7 @@ internal class FirLightAnonymousClassForSymbol(
 
         analyzeWithSymbolAsContext(anonymousObjectSymbol) {
             val callableSymbols = anonymousObjectSymbol.getDeclaredMemberScope().getCallableSymbols()
-            createMethods(callableSymbols, isTopLevel = false, result)
+            createMethods(callableSymbols, result)
         }
 
         result

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightClassForEnumEntry.kt

@@ -128,7 +128,7 @@ internal class FirLightClassForEnumEntry(
 
         analyzeWithSymbolAsContext(enumEntrySymbol) {
             val callableSymbols = enumEntrySymbol.getDeclaredMemberScope().getCallableSymbols()
-            createMethods(callableSymbols, isTopLevel = false, result)
+            createMethods(callableSymbols, result)
         }
 
         return result

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightClassForFacade.kt

@@ -82,7 +82,7 @@ class FirLightClassForFacade(
             }
         }
 
-        createMethods(symbols.asSequence(), isTopLevel = true, result)
+        createMethods(symbols.asSequence(), result, isTopLevel = true)
     }
 
     private val _ownMethods: List<KtLightMethod> by lazyPub {

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightClassForSymbol.kt

@@ -6,6 +6,8 @@
 package org.jetbrains.kotlin.idea.asJava
 
 import com.intellij.psi.*
+import org.jetbrains.kotlin.asJava.builder.memberIndex
+import org.jetbrains.kotlin.asJava.classes.METHOD_INDEX_BASE
 import org.jetbrains.kotlin.asJava.classes.METHOD_INDEX_FOR_DEFAULT_CTOR
 import org.jetbrains.kotlin.asJava.classes.lazyPub
 import org.jetbrains.kotlin.asJava.elements.KtLightField
@@ -100,7 +102,8 @@ internal open class FirLightClassForSymbol(
                 }
             }
 
-            createMethods(visibleDeclarations, isTopLevel = false, result)
+            val suppressStatic = classOrObjectSymbol.classKind == KtClassKind.COMPANION_OBJECT
+            createMethods(visibleDeclarations, result, suppressStaticForMethods = suppressStatic)
         }
 
         if (result.none { it.isConstructor }) {
@@ -116,6 +119,8 @@ internal open class FirLightClassForSymbol(
             }
         }
 
+        addMethodsFromCompanionIfNeeded(result)
+
         result
     }
 
@@ -140,6 +145,17 @@ internal open class FirLightClassForSymbol(
         }
     }
 
+    private fun addMethodsFromCompanionIfNeeded(result: MutableList<KtLightMethod>) {
+        classOrObjectSymbol.companionObject?.run {
+            analyzeWithSymbolAsContext(this) {
+                val methods = getDeclaredMemberScope().getCallableSymbols()
+                    .filterIsInstance<KtFunctionSymbol>()
+                    .filter { it.hasJvmStaticAnnotation() }
+                createMethods(methods, result)
+            }
+        }
+    }
+
     private fun addInstanceFieldIfNeeded(result: MutableList<KtLightField>) {
         val isNamedObject = classOrObjectSymbol.classKind == KtClassKind.OBJECT
         if (isNamedObject && classOrObjectSymbol.symbolKind != KtSymbolKind.LOCAL) {

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/FirLightInterfaceClassSymbol.kt

@@ -43,7 +43,7 @@ internal class FirLightInterfaceClassSymbol(
             val visibleDeclarations = classOrObjectSymbol.getDeclaredMemberScope().getCallableSymbols()
                 .filterNot { it is KtFunctionSymbol && it.visibility == KtSymbolVisibility.PRIVATE }
 
-            createMethods(visibleDeclarations, isTopLevel = false, result)
+            createMethods(visibleDeclarations, result)
         }
 
         result

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/classes/firLightClassUtils.kt

@@ -98,10 +98,10 @@ private fun lightClassForEnumEntry(ktEnumEntry: KtEnumEntry): KtLightClass? {
 
 internal fun FirLightClassBase.createMethods(
     declarations: Sequence<KtCallableSymbol>,
-    isTopLevel: Boolean,
+    result: MutableList<KtLightMethod>,
-    result: MutableList<KtLightMethod>
+    isTopLevel: Boolean = false,
+    suppressStaticForMethods: Boolean = false
 ) {
-    var methodIndex = METHOD_INDEX_BASE
     for (declaration in declarations) {
 
         if (declaration is KtFunctionSymbol && declaration.isInline) continue
@@ -112,13 +112,15 @@ internal fun FirLightClassBase.createMethods(
 
         when (declaration) {
             is KtFunctionSymbol -> {
+                var methodIndex = METHOD_INDEX_BASE
                 result.add(
                     FirLightSimpleMethodForSymbol(
                         functionSymbol = declaration,
                         lightMemberOrigin = null,
                         containingClass = this@createMethods,
                         isTopLevel = isTopLevel,
-                        methodIndex = methodIndex++
+                        methodIndex = methodIndex,
+                        suppressStatic = suppressStaticForMethods
                     )
                 )
 
@@ -150,7 +152,7 @@ internal fun FirLightClassBase.createMethods(
                         constructorSymbol = declaration,
                         lightMemberOrigin = null,
                         containingClass = this@createMethods,
-                        methodIndex++
+                        methodIndex = METHOD_INDEX_BASE
                     )
                 )
             }

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/methods/FirLightAccessorMethodForSymbol.kt

@@ -139,6 +139,7 @@ internal class FirLightAccessorMethodForSymbol(
     override fun equals(other: Any?): Boolean =
         this === other ||
                 (other is FirLightAccessorMethodForSymbol &&
+                        isGetter == other.isGetter &&
                         kotlinOrigin == other.kotlinOrigin &&
                         propertyAccessorSymbol == other.propertyAccessorSymbol)
 

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/asJava/methods/FirLightSimpleMethodForSymbol.kt

@@ -22,13 +22,14 @@ internal class FirLightSimpleMethodForSymbol(
     containingClass: FirLightClassBase,
     methodIndex: Int,
     isTopLevel: Boolean,
-    argumentsSkipMask: BitSet? = null
+    argumentsSkipMask: BitSet? = null,
+    suppressStatic: Boolean = false
 ) : FirLightMethodForSymbol(
     functionSymbol = functionSymbol,
     lightMemberOrigin = lightMemberOrigin,
     containingClass = containingClass,
     methodIndex = methodIndex,
-    argumentsSkipMask = argumentsSkipMask
+    argumentsSkipMask = argumentsSkipMask,
 ) {
 
     private val _name: String by lazyPub {
@@ -96,7 +97,7 @@ internal class FirLightSimpleMethodForSymbol(
 
         modifiers.add(_visibility)
 
-        if (functionSymbol.hasJvmStaticAnnotation()) {
+        if (!suppressStatic && functionSymbol.hasJvmStaticAnnotation()) {
             modifiers.add(PsiModifier.STATIC)
         }
         if (functionSymbol.hasAnnotation("kotlin/jvm/Strictfp", null)) {