Initialize property metadata array before class body generation

Initialization of companion object members (e.g., delegate properties
using provideDelegate convention) can depend on property metadata array,
which in turn can be initialized before other class members.

 #KT-18902 Fixed Target versions 1.1.5

compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java

@@ -348,9 +348,12 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
     }
 
     @Override
-    protected void generateSyntheticParts() {
+    protected void generateSyntheticPartsBeforeBody() {
         generatePropertyMetadataArrayFieldIfNeeded(classAsmType);
+    }
 
+    @Override
+    protected void generateSyntheticPartsAfterBody() {
         generateFieldForSingleton();
 
         generateCompanionObjectBackingFieldCopies();

compiler/backend/src/org/jetbrains/kotlin/codegen/InterfaceImplBodyCodegen.kt

@@ -70,7 +70,7 @@ class InterfaceImplBodyCodegen(
         return classDescriptorImpl
     }
 
-    override fun generateSyntheticParts() {
+    override fun generateSyntheticPartsAfterBody() {
         for (memberDescriptor in descriptor.defaultType.memberScope.getContributedDescriptors()) {
             if (memberDescriptor !is CallableMemberDescriptor) continue
 

compiler/backend/src/org/jetbrains/kotlin/codegen/MemberCodegen.java

@@ -131,11 +131,18 @@ public abstract class MemberCodegen<T extends KtPureElement/* TODO: & KtDeclarat
     public void generate() {
         generateDeclaration();
 
+        boolean shouldGenerateSyntheticParts =
+                !(element instanceof KtClassOrObject) ||
+                state.getGenerateDeclaredClassFilter().shouldGenerateClassMembers((KtClassOrObject) element);
+
+        if (shouldGenerateSyntheticParts) {
+            generateSyntheticPartsBeforeBody();
+        }
+
         generateBody();
 
-        if (!(element instanceof KtClassOrObject) ||
-            state.getGenerateDeclaredClassFilter().shouldGenerateClassMembers((KtClassOrObject) element)) {
-            generateSyntheticParts();
+        if (shouldGenerateSyntheticParts) {
+            generateSyntheticPartsAfterBody();
         }
 
         if (state.getClassBuilderMode().generateMetadata) {
@@ -147,9 +154,12 @@ public abstract class MemberCodegen<T extends KtPureElement/* TODO: & KtDeclarat
 
     protected abstract void generateDeclaration();
 
+    protected void generateSyntheticPartsBeforeBody() {
+    }
+
     protected abstract void generateBody();
 
-    protected void generateSyntheticParts() {
+    protected void generateSyntheticPartsAfterBody() {
     }
 
     protected abstract void generateKotlinMetadataAnnotation();

compiler/backend/src/org/jetbrains/kotlin/codegen/MultifileClassPartCodegen.kt

@@ -186,7 +186,7 @@ class MultifileClassPartCodegen(
         }
     }
 
-    override fun generateSyntheticParts() {
+    override fun generateSyntheticPartsAfterBody() {
         generateSyntheticAccessors()
     }
 

compiler/backend/src/org/jetbrains/kotlin/codegen/PackagePartCodegen.java

@@ -130,7 +130,7 @@ public class PackagePartCodegen extends MemberCodegen<KtFile> {
     }
 
     @Override
-    protected void generateSyntheticParts() {
+    protected void generateSyntheticPartsAfterBody() {
         generateSyntheticAccessors();
     }
 }

compiler/backend/src/org/jetbrains/kotlin/codegen/ScriptCodegen.java

@@ -105,10 +105,14 @@ public class ScriptCodegen extends MemberCodegen<KtScript> {
     }
 
     @Override
-    protected void generateSyntheticParts() {
+    protected void generateSyntheticPartsBeforeBody() {
         generatePropertyMetadataArrayFieldIfNeeded(classAsmType);
     }
 
+    @Override
+    protected void generateSyntheticPartsAfterBody() {
+    }
+
     @Override
     protected void generateKotlinMetadataAnnotation() {
         generateKotlinClassMetadataAnnotation(scriptDescriptor, true);