FIR Java model: support static members & enum entries

Related to KT-29218

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -148,8 +148,13 @@ class FirRenderer(builder: StringBuilder) : FirVisitorVoid() {
         if (memberDeclaration.isActual) {
             print("actual ")
         }
-        if (memberDeclaration is FirCallableMember && memberDeclaration.isOverride) {
-            print("override ")
+        if (memberDeclaration is FirCallableMember) {
+            if (memberDeclaration.isOverride) {
+                print("override ")
+            }
+            if (memberDeclaration.isStatic) {
+                print("static ")
+            }
         }
         if (memberDeclaration is FirRegularClass) {
             if (memberDeclaration.isInner) {

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/FirCallableMember.kt

@@ -16,6 +16,8 @@ interface FirCallableMember :
     FirTypedDeclaration, FirSymbolOwner<FirCallableMember> {
     val isOverride: Boolean get() = status.isOverride
 
+    val isStatic: Boolean get() = status.isStatic
+
     val receiverTypeRef: FirTypeRef?
 
     override fun <R, D> accept(visitor: FirVisitor<R, D>, data: D): R =

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/FirDeclarationStatus.kt

@@ -46,6 +46,8 @@ interface FirDeclarationStatus : FirElement {
 
     val isSuspend: Boolean
 
+    val isStatic: Boolean
+
     override val psi: PsiElement?
         get() = null
 

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/impl/FirDeclarationStatusImpl.kt

@@ -112,6 +112,12 @@ open class FirDeclarationStatusImpl(
             this[SUSPEND] = value
         }
 
+    override var isStatic: Boolean
+        get() = this[STATIC]
+        set(value) {
+            this[STATIC] = value
+        }
+
     private enum class Modifier(val mask: Int) {
         EXPECT(0x1),
         ACTUAL(0x2),
@@ -126,7 +132,8 @@ open class FirDeclarationStatusImpl(
         INNER(0x400),
         COMPANION(0x800),
         DATA(0x1000),
-        SUSPEND(0x2000)
+        SUSPEND(0x2000),
+        STATIC(0x4000)
     }
 
     fun resolved(visibility: Visibility, modality: Modality): FirDeclarationStatus {